Martin Heidegger

Martin Heidegger (26 September 1889 – 26 May 1976) () was an influential German philosopher. His best known book, Being and Time, is considered to be one of the most important philosophical works of the 20th century. Heidegger remains controversial due to his association with Nazism.
== Introduction ==
Heidegger claimed that Western philosophy has, since Plato, misunderstood what it means for something "to be", tending to approach this question in terms of a being, rather than asking about being itself. In other words, Heidegger believed all investigations of being have historically focused on particular entities and their properties, or have treated being itself as an entity, or substance, with properties. A more authentic analysis of being would, for Heidegger, investigate "that on the basis of which beings are already understood", or that which underlies all particular entities and allows them to show up as entities in the first place. Martin Heidegger, Being and Time, pp. 25–26. But since philosophers and scientists have overlooked the more basic, pre-theoretical ways of being from which their theories derive, and since they have incorrectly applied those theories universally, they have confused our understanding of being and human existence. To avoid these deep-rooted misconceptions, Heidegger believed philosophical inquiry must be conducted in a new way, through a process of retracing the steps of the history of philosophy.
Heidegger argued that this misunderstanding, commencing from Plato, has left its traces in every stage of Western thought. All that we understand, from the way we speak to our notions of "common sense", is susceptible to error, to fundamental mistakes about the nature of being. These mistakes filter into the terms through which being is articulated in the history of philosophy—reality, logic, God, consciousness, presence, et cetera. In his later philosophy, Heidegger argues that this profoundly affects the way in which human beings relate to modern technology. 
Heidegger's work has strongly influenced philosophy, theology and the humanities. Within philosophy it played a crucial role in the development of existentialism, hermeneutics, deconstruction, postmodernism, and continental philosophy in general. Well-known philosophers such as Karl Jaspers, Leo Strauss, Ahmad Fardid, Hans-Georg Gadamer, Jean-Paul Sartre, Emmanuel Lévinas, Hannah Arendt, Maurice Merleau-Ponty, Michel Foucault, Richard Rorty, and Jacques Derrida have all analyzed Heidegger's work.
Heidegger infamously supported National Socialism and was a member of the Nazi Party from May 1933 until May 1945Source: Hannah Arendt / Martin Heidegger by Elzbieta Ettinger, Yale University Press, New Haven, 1995, page 10. His defenders, notably Hannah Arendt, see this support as arguably a personal " 'error' " (a word which Arendt placed in quotation marks when referring to Heidegger's Nazi-era politics.)Hannah Arendt, Martin Heidegger At 80, New York Review of Books, 17/6, (Oct. 21, 1971), 50-54; repr. in Heidegger and Modern Philosophy ed. M. Murray (New Haven: Yale University Press, 1978), 293-303 Defenders think this error was largely irrelevant to Heidegger's philosophy. Critics, such as his former students Emmanuel Lévinas"Martin Heidegger, Emmanuel Levinas\, and the Politics of Dwelling" by David J. Gauthier, Ph.D dissertation, Louisiana State University, 2004, page 156 and Karl LöwithKarl Löwith, Mein Leben in Deutschland vor und nach 1933: ein Bericht (Stuttgart: Metzler, 1986), p. 57, translated by Paula Wissing as cited by Maurice Blanchot in "Thinking the Apocalypse: a Letter from Maurice Blanchot to Catherine David", in Critical Inquiry 15:2, pp. 476-477., hold that Heidegger's support for National Socialism was immoral and revealed flaws inherent in his thought."Emmanuel Faye,[in his “Heidegger: The Introduction of Nazism Into Philosophy,”] argues fascist and racist ideas are so woven into the fabric of Heidegger’s theo-ries that they no longer deserve to be called philosophy. . . . Richard Wolin, the author of several books on Heidegger and a close reader of the Faye book, said he is not convinced Heidegger’s thought is as thoroughly tainted by Nazism as Mr. Faye argues. Nonetheless he recognizes how far Heidegger’s ideas have spilled into the larger culture." An Ethical Question: Does a Nazi Deserve a Place Among Philosophers? by Patricia Cohen. New York Times. Published: November 8, 2009. 
== Biography ==
=== Early years ===
Heidegger was born in rural Meßkirch, Germany. Raised a Roman Catholic, he was the son of the sexton of the village church, Friedrich Heidegger, and his wife Johanna, née Kempf. In their faith, his parents adhered to the First Vatican Council of 1870, which was observed mainly by the poorer class of Meßkirch. The religious controversy between the wealthy Altkatholiken and the working class led to the temporary use of a converted barn for the Roman Catholics. At the festive reunion of the congregation in 1895, the Old Catholic sexton handed the key to six year old Martin. 
His family could not afford to send him to university, so he entered a Jesuit seminary, though he was turned away within weeks because of the health requirement, and what he described as a psychosomatic heart condition.Hermann Philipse, Heidegger's Philosophy of Being p. 173, Notes to Chapter One, Martin Heidegger, Supplements, trans. John Van Buren p. 183. After studying theology at the University of Freiburg from 1909 to 1911, he switched to philosophy, in part again because of his heart condition. Heidegger completed his doctoral thesis on psychologism in 1914 influenced by Neothomism and NeokantianismDie Lehre vom Urteil im Psychologismus. Ein kritisch-theoretischer Beitrag zur Logik (1914). Source: Annemarie Gethmann-Siefert, "Martin Heidegger", Theologische Realenzyklopädie, XIV, 1982, p. 562, and in 1916 finished his venia legendi with a thesis on Duns Scotus influenced by Heinrich Rickert and Edmund Husserl.Note, however, that it was discovered later that one of the two main sources used by Heidegger was not by Scotus, but by Thomas of Erfurt. Thus Heidegger's 1916 doctoral thesis, Die Kategorien- und Bedeutungslehre des Duns Scotus, should have been entitled, Die Kategorienlehre des Duns Scotus und die Bedeutungslehre des Thomas von Erfurt. Source: Stanford Encyclopedia of Philosophy. In the two years following, he worked first as an unsalaried Privatdozent, then served as a soldier during the final year of World War I, working behind a desk and never leaving Germany. After the war, he served as a salaried senior assistant to Edmund Husserl at the University of Freiburg from 1919 until 1923.
=== Marburg ===
In 1923, Heidegger was elected to an extraordinary Professorship in Philosophy at the University of Marburg. His colleagues there included Rudolf Bultmann, Ernst Friedländer, Nicolai Hartmann, and Paul Natorp. Heidegger's students at Marburg included Hans-Georg Gadamer, Hannah Arendt, Karl Löwith, Gerhard Krüger, Irene Strauss Paley, Leo Strauss, Jacob Klein, Gunther (Stern) Anders, and Hans Jonas. Through a confrontation with Aristotle he begins to develop in his lectures the main theme of his philosophy: the question of the sense of being. He extends the concept of subject to the dimension of history and concrete existence which he finds prefigured in Christian thinkers like Paulus, Augustinus, Luther, Kierkegaard. He also reads the works of Dilthey, Husserl and Max SchelerGethmann-Siefert, 1982, p. 563.
=== Freiburg ===
In 1927, Heidegger publishes his main work Sein und Zeit (Being and Time). When Husserl retired in 1928, Heidegger accepted Freiburg's election to be his successor, in spite of a counter-offer by Marburg. Heidegger remained at Freiburg im Breisgau for the rest of his life, declining a number of later offers including one from Berlin, the most prestigious German university of the day. Among his students at Freiburg were Charles Malik, Herbert Marcuse and Ernst Nolte. Emmanuel Levinas attended his lecture courses during his stay in Freiburg in 1928.
On April 21, 1933, Heidegger became Rector of the University of Freiburg, joining the Nazi party on May 1, 1933Source: //Heidegger and Nazism// by Victor Farias, Temple University Press, Philadelphia, page 84. Heidegger publicly endorsed Nazism. In a November 1933 article in the Freiburg student newspaper, Heidegger wrote:
:The German people must choose its future, and this future is bound to the Führer.Source: "German Men and Women!", Freiburger Studentenzeitung,, November 10, 1933, as quoted in //Introducing Heidegger// by Jeff Collins et al., Icon Books, Thriplow, Cambridge, page 96
=== Postwar ===
After leaving the Nazi Party in May 1945, Heidegger did not again participate in any other political organizations. However, he never repudiated his prior statements praising Hitler and National Socialism. Citing his Nazi ties during the years 1933 to 1945, the French Occupation Authority ruled that Heidegger had been a "Mitläufer" (fellow traveller, tagalong) with the Nazis and banned him from teaching in Germany. Authorities later rescinded this decision in 1951, and Heidegger became Professor emeritus with all privileges. He then taught regularly from 1951 until 1958, and by invitation until 1967.
=== Personal life ===
thumb|left|Heidegger's stone-and-tile chalet clustered among others at Todtnauberg.
Heidegger married Elfriede Petri on March 21, 1917, in a Catholic ceremony officiated by his friend Engelbert Krebs, and a week later in a Protestant ceremony in the presence of her parents. Their first son Jörg was born in 1919. According to the recently published correspondence between the spouses, Hermann (born 1920) is the son of Elfriede and Friedel Caesar. Martin Heidegger had extramarital affairs with Hannah Arendt and Elisabeth Blochmann, both students of his. Arendt was Jewish and Blochmann had one Jewish parent, making them subject to severe persecution by the Nazi authorities. He helped Blochmann emigrate from Germany prior to World War II and resumed contact with both of them after the war.Martin Heidegger / Elisabeth Blochmann. Briefwechsel 1918–1969. Joachim W. Storck, ed. Marbach am Neckar: Deutsches Literatur-Archiv, 1989, 2nd edn. 1990.
Heidegger spent much time at his vacation home at Todtnauberg, on the edge of the Black Forest. He considered the seclusion provided by the forest to be the best environment in which to engage in philosophical thought.Being There, a Spring 2007 article on Heidegger's vacation home for Cabinet magazine.
Heidegger died on May 26, 1976 and was buried in the Meßkirch cemetery. thumb|right|Heidegger's grave in Meßkirch
== Philosophy ==
=== Being, time, and Dasein ===
Heidegger's philosophy is founded on the attempt to conjoin what he considers two fundamental insights:
*The first of these is Heidegger's observation that, in the course of over two thousand years of history, philosophy has attended to all the beings that can be found in the world (including the "world" itself), but has forgotten to ask what "being" itself is. This is Heidegger's "question of being", and it is Heidegger's fundamental concern throughout his work from the beginning of his career until its end. One crucial source of this insight was Heidegger's reading of Franz Brentano's treatise on Aristotle's manifold uses of the word "being", a work which provoked Heidegger to ask what kind of unity underlies this multiplicity of uses. Heidegger opens his magnum opus, Being and Time, with a citation from Plato's Sophist For a recent study on Heidegger's reading of the Sophist and his less central interest in Plato's Timaeus and its conception of space qua khôra: see: Nader El-Bizri, "On Kai khôra: Situating Heidegger between the Sophist and the Timaeus", Studia Phaenomenologica, Vol. IV, Issue 1-2 (2004), pp. 73-98 indicating that Western philosophy has neglected "being" because it was considered obvious, rather than as worthy of question. Heidegger's intuition about the question of being is thus a historical argument, which in his later work becomes his concern with the "history of being", that is, the history of the forgetting of being, which according to Heidegger requires that philosophy retrace its footsteps through a productive "destruction" of the history of philosophy.
*The second intuition animating Heidegger's philosophy derives from the influence of Edmund Husserl, a philosopher largely uninterested in questions of philosophical history. Rather, Husserl argued that all that philosophy could and should be is a description of experience (hence the phenomenological slogan, "to the things themselves"). But for Heidegger, this meant understanding that experience is always already situated in a world and in ways of being. Thus Husserl's understanding that all consciousness is "intentional" (in the sense that it is always intended toward something, and is always "about" something) is transformed in Heidegger's philosophy, becoming the thought that all experience is grounded in "care." This is the basis of Heidegger's "existential analytic", as he develops it in Being and Time. Heidegger argues that to be able to describe experience properly means finding the being for whom such a description might matter. Heidegger thus conducts his description of experience with reference to "Dasein", the being for whom being is a question.In everyday German, "Dasein" means "existence." It is composed of "Da" (here/there) and "Sein" (being). Dasein is transformed in Heidegger's usage from its everyday meaning to refer, rather, to that being that is there in its world, that is, the being for whom being matters. In later publications Heidegger writes the term in hyphenated form as Da-sein, thus emphasizing the distance from the word's ordinary usage. In Being and Time, Heidegger criticized the abstract and metaphysical character of traditional ways of grasping human existence as rational animal, person, man, soul, spirit, or subject. Dasein, then, is not intended as a way of conducting a "philosophical anthropology", but is rather understood by Heidegger to be the condition of possibility for anything like a "philosophical anthropology."Jacques Derrida describes this in the following terms: "We can see then that Dasein, though not man, is nevertheless nothing other than man." Jacques Derrida, "The Ends of Man", Margins of Philosophy (Chicago: University of Chicago Press, 1982), p. 127. Dasein, according to Heidegger, is care. In the course of his existential analytic, Heidegger argues that Dasein, who finds itself thrown into the world amidst things and with others, is thrown into its possibilities, including the possibility and inevitability of one's own mortality. The need for Dasein to assume these possibilities, that is, the need to be responsible for one's own existence, is the basis of Heidegger's notions of authenticity and resoluteness—that is, of those specific possibilities for Dasein which depend on escaping the "vulgar" temporality of calculation and of public life.
The marriage of these two observations depends on the fact that each of them is essentially concerned with time. That Dasein is thrown into an already existing world and thus into its mortal possibilities does not only mean that Dasein is an essentially temporal being; it also implies that the description of Dasein can only be carried out in terms inherited from the Western tradition itself. For Heidegger, unlike for Husserl, philosophical terminology could not be divorced from the history of the use of that terminology, and thus genuine philosophy could not avoid confronting questions of language and meaning. The existential analytic of Being and Time was thus always only a first step in Heidegger's philosophy, to be followed by the "dismantling" (Destruktion) of the history of philosophy, that is, a transformation of its language and meaning, that would have made of the existential analytic only a kind of "limit case" (in the sense in which special relativity is a limit case of general relativity).
That Heidegger did not write this second part of Being and Time, and that the existential analytic was left behind in the course of Heidegger's subsequent writings on the history of being, might be interpreted as a failure to conjugate his account of individual experience with his account of the vicissitudes of the collective human adventure that he understands the Western philosophical tradition to be. And this would in turn raise the question of whether this failure is due to a flaw in Heidegger's account of temporality, that is, of whether Heidegger was correct to oppose vulgar and authentic time.Cf. Bernard Stiegler, "Technics of Decision: An Interview", Angelaki 8 (2003), pp. 154–67, and cf. the discussion of Stiegler's reading of Heidegger in the sub-section "Bernard Stiegler" below.
=== Being and Time ===
thumb|left|View from Heidegger's vacation chalet in Todtnauberg. Heidegger wrote most of Being and Time there.
Being and Time (German title: Sein und Zeit), published in 1927, is Heidegger's first academic book. He had been under pressure to publish in order to qualify for Husserl's chair at Freiburg University and the success of this work ensured his appointment to the post. 
It investigates the question of being by asking about the being for whom being is a question. Heidegger names this being Dasein (see above), and the book pursues its investigation through themes such as mortality, anxiety, temporality, and historicity. It was Heidegger's original intention to write a second half of the book, consisting of a "Destruktion" of the history of philosophy — that is, the transformation of philosophy by re-tracing its history — but he never completed this project.
Being and Time influenced many thinkers, including existentialist thinkers like Jean-Paul Sartre (although Heidegger distanced himself from existentialism—see below).
=== Die Kehre ===
Some scholars have argued that Heidegger's thought after Being and Time exhibits a "turn" in his thinking (die Kehre). Heidegger denied this in a letter—published by William J. Richardson in Heidegger: Through Phenomenology to Thought (1963)—which stated that, if there had been a turn at all, it was simply a matter of going deeper into the same matters. In his later work, Heidegger largely abandons the account of Dasein as a pragmatic, engaged, worldly agent, and instead discusses other elements necessary to an understanding of being, notably language, the earth (as the almost ineffable foundation of world) and the presence of the gods. Nevertheless, Dasein (or "mortals", as he later prefers to say) remains a crucial part of the coming-about or event (Ereignis) of being.
=== Later works ===
thumb|"Am Feldweg" in Meßkirch. Heidegger often went for a walk on the path in this field. See the text "Der Feldweg" GA Nr. 13
Heidegger's later works, following the so-called "turn" and after the Second World War, seem to many commentators to at least reflect a shift of focus, if not indeed a major change in his philosophical outlook. One way this has been understood is as a shift from "doing" to "dwelling", although others feel that this is to overstate the difference. Heidegger focuses less on the way in which the structures of being are revealed in everyday behavior, and more on the way in which behavior itself depends on a prior "openness to being." The essence of being human is the maintenance of this openness. Heidegger contrasts this openness to the "will to power" of the modern human subject, which is one way of forgetting this originary openness.
Heidegger understands the commencement of the history of Western philosophy as a brief period of authentic openness to being, during the time of the pre-Socratics, especially Parmenides, Heraclitus, and Anaximander. This was followed, according to Heidegger, by a long period increasingly dominated by the forgetting of this initial openness, a period which commences with Plato, but a forgetting or abandonment which occurs in different ways throughout Western history.
Two recurring themes of Heidegger's later writings are poetry and technology. Heidegger sees poetry and technology as two contrasting ways of "revealing." Poetry reveals being in the way in which, if it is genuine poetry, it commences something new. Technology, on the other hand, when it gets going, inaugurates the world of the dichotomous subject and object, which modern philosophy commencing with Descartes also reveals. But with modern technology a new stage of revealing is reached, in which the subject-object distinction is overcome even in the "material" world of technology. The essence of modern technology is the conversion of the whole universe of beings into an undifferentiated "standing reserve" (Bestand) of energy available for any use to which humans choose to put it. Heidegger described the essence of modern technology as Gestell, or "enframing." Heidegger does not unequivocally condemn technology: while he acknowledges that modern technology contains grave dangers, Heidegger nevertheless also argues that it may constitute a chance for human beings to enter a new epoch in their relation to being. Despite this, some commentators have concluded that an agrarian nostalgia permeates his later work.
Heidegger's important later works include Vom Wesen der Wahrheit ("On the Essence of Truth", 1930), Der Ursprung des Kunstwerkes ("The Origin of the Work of Art", 1935), Einführung in die Metaphysik ("An Introduction to Metaphysics", 1935), Bauen Wohnen Denken ("Building Dwelling Thinking", 1951), and Die Frage nach der Technik ("The Question Concerning Technology", 1954) and Was heisst Denken? ("What Is Called Thinking?" 1954). Also important is Beiträge zur Philosophie (Vom Ereignis) (Contributions to Philosophy [From Enowning]), composed in the years 1936–38 but not published until 1989, on the centennial of Heidegger's birth.
=== Influences ===
Aristotle and the Greeks
Heidegger was influenced at an early age by Aristotle, mediated through Catholic theology, Medieval philosophy, and Franz Brentano. Aristotle's ethical, logical, and metaphysical works were crucial to the development of his thought in the crucial period of the 1920s. Although he later worked less on Aristotle, Heidegger recommended postponing reading Nietzsche, and to "first study Aristotle for ten to fifteen years."Heidegger, What is Called Thinking? (New York: Harper & Row, 1968), p. 73. In reading Aristotle, Heidegger increasingly contested the traditional Latin translation and scholastic interpretation of his thought. Particularly important (not least for its influence upon others, both in their interpretation of Aristotle and in rehabilitating a neo-Aristotelian "practical philosophy"Kelvin Knight, Aristotelian Philosophy: Ethics and Politics from Aristotle to MacIntyre (Cambridge: Polity Press, 2007).) was his radical reinterpretation of Book Six of Aristotle's Nicomachean Ethics and several books of the Metaphysics. Both informed the argument of Being and Time.
The idea of asking about being may be traced back via Aristotle to Parmenides. Heidegger claimed to have revived the question of being, the question having been largely forgotten by the metaphysical tradition extending from Plato to Descartes, a forgetfulness extending to the Age of Enlightenment and then to modern science and technology. In pursuit of the retrieval of this question, Heidegger spent considerable time reflecting on ancient Greek thought, in particular on Plato, Parmenides, Heraclitus, and Anaximander, as well as on the tragic playwright Sophocles.
Dilthey
Heidegger's very early project of developing a "hermeneutics of factical life" and his hermeneutical transformation of phenomenology was influenced in part by his reading of the works of Wilhelm Dilthey. Heidegger's portrayal of history, historicity, and generation need to be interpreted in this context and, in particular, the correspondence between Dilthey and Paul Yorck von Wartenburg.
Of the influence of Dilthey, Hans-Georg Gadamer writes the following: "As far as Dilthey is concerned, we all know today what I have known for a long time: namely that it is a mistake to conclude on the basis of the citation in Being and Time that Dilthey was especially influential in the development of Heidegger's thinking in the mid-1920s. This dating of the influence is much too late." He adds that by the fall of 1923 it was plain that Heidegger felt "the clear superiority of Count Yorck over the famous scholar, Dilthey." Gadamer nevertheless makes clear that Dilthey's influence was important in helping the youthful Heidegger "in distancing himself from the systematic ideal of Neo-Kantianism, as Heidegger acknowledges in Being and Time."Hans-Georg Gadamer, "Martin Heidegger's One Path", in Theodore Kisiel & John van Buren (eds.), Reading Heidegger from the Start: Essays in His Earliest Thought (Albany: SUNY Press, 1994), pp. 22–4. Based on Heidegger's earliest lecture courses, in which Heidegger already engages Dilthey's thought prior to the period Gadamer mentions as "too late", recent scholars as diverse as Theodore Kisiel and David Farrell Krell have argued for the importance of Diltheyan concepts and strategies in the formation of Heidegger's thought.In The Genesis of Heidegger's Being and Time (Berkeley: University of California Press, 1993), Theodor Kisiel designates the first version of the project that culminates in Being and Time, "the Dilthey draft" (p. 313). David Farrell Krell comments in Daimon Life: Heidegger and Life-Philosophy (Bloomington & Indianapolis: Indiana University Press, 1992) that "Heidegger's project sprouts (in part, but in good part) from the soil of Dilthey's philosophy of factical-historical life" (p. 35).
Even though Gadamer's interpretation of Heidegger has been questioned, there is little doubt that Heidegger seized upon Dilthey's concept of hermeneutics. Heidegger's novel ideas about ontology required a gestalt formation, not merely a series of logical arguments, in order to demonstrate his fundamentally new paradigm of thinking, and the hermeneutic circle offered a new and powerful tool for the articulation and realization of these ideas. 
Husserl
There is disagreement over the degree of influence that Husserl had on Heidegger's philosophical development, just as there is disagreement about the degree to which Heidegger's philosophy is grounded in phenomenology. These disagreements centre around how much of Husserlian phenomenology is contested by Heidegger, and how much this phenomenology in fact informs Heidegger's own understanding.
On the relation between the two figures, Gadamer wrote the following: "When asked about phenomenology, Husserl was quite right to answer as he used to in the period directly after World War I: 'Phenomenology, that is me and Heidegger'." Nevertheless, Gadamer noted that Heidegger was no patient collaborator with Husserl, and that Heidegger's "rash ascent to the top, the incomparable fascination he aroused, and his stormy temperament surely must have made Husserl, the patient one, as suspicious of Heidegger as he always had been of Max Scheler's volcanic fire."Hans-Georg Gadamer, "Martin Heidegger—75 Years", Heidegger's Ways (Albany: SUNY Press, 1994), p. 18.
Robert J. Dostal understands the importance of Husserl to be profound:
:Heidegger himself, who is supposed to have broken with Husserl, bases his hermeneutics on an account of time that not only parallels Husserl's account in many ways but seems to have been arrived at through the same phenomenological method as was used by Husserl. [...] The differences between Husserl and Heidegger are significant, but if we do not see how much it is the case that Husserlian phenomenology provides the framework for Heidegger's approach, we will not be able to appreciate the exact nature of Heidegger's project in Being and Time or why he let it unfinished.Robert J. Dostal, "Time and Phenomenology in Husserl and Heidegger", in Charles Guignon (ed.), The Cambridge Companion to Heidegger (Cambridge & New York: Cambridge University Press, 1993), p. 142.
Daniel O. Dahlstrom sees Heidegger's presentation of his work as a departure from Husserl as unfairly misrepresenting Husserl's own work. Dahlstrom concludes his consideration of the relation between Heidegger and Husserl as follows:
:Heidegger's silence about the stark similarities between his account of temporality and Husserl's investigation of internal time-consciousness contributes to a misrepresentation of Husserl's account of intentionality. Contrary to the criticisms Heidegger advances in his lectures, intentionality (and, by implication, the meaning of 'to be') in the final analysis is not construed by Husserl as sheer presence (be it the presence of a fact or object, act or event). Yet for all its "dangerous closeness" to what Heidegger understands by temporality, Husserl's account of internal time-consciousness does differ fundamentally. In Husserl's account the structure of protentions is accorded neither the finitude nor the primacy that Heidegger claims are central to the original future of ecstatic-horizonal temporality.Daniel O. Dahlstrom, "Heidegger's Critique of Husserl", in Theodore Kisiel & John van Buren (eds.), Reading Heidegger from the Start: Essays in His Earliest Thought (Albany: SUNY Press, 1994), p. 244.
Kierkegaard
Contemporary Heideggerians regard Søren Kierkegaard as, by far, the greatest philosophical contributor to Heidegger's own existentialist concepts.Dreyfus, Hubert. Being-in-the-world: A Commentary on Heidegger's Being and Time, Division I. (Cambridge, MA: MIT Press, 1991), Sec. Appendix.. Heidegger's concepts of anxiety (Angst) and mortality draw on Kierkegaard and are indebted to the way in which the latter lays out the importance of our subjective relation to truth, our existence in the face of death, the temporality of existence, and the importance of passionate affirmation of one's individual being-in-the-world. Nonetheless, it is important to notice the difference between the Danish philosopher, whose thought was both individualistic and Christian, and Heidegger, who conceived of human existence as thoroughly social and sharply distinguished philosophy itself from all personal, scientific, and religious commitments.
Hölderlin and Nietzsche
Friedrich Hölderlin and Friedrich Nietzsche were both important influences on Heidegger, and many of his lecture courses were devoted to one or other of these figures, especially in the 1930s and 1940s. The lectures on Nietzsche focused on fragments posthumously published under the title The Will to Power, rather than on Nietzsche's published works. Heidegger read The Will to Power as the culminating expression of Western metaphysics, and the lectures are a kind of dialogue between the two thinkers.
This is also the case for the lecture courses devoted to the poetry of Friedrich Hölderlin, which became an increasingly central focus of Heidegger's work and thought. Heidegger grants to Hölderlin a singular place within the history of being and the history of Germany, as a herald whose thought is yet to be "heard" in Germany or the West. Many of Heidegger's works from the 1930s onwards include meditations on lines from Hölderlin's poetry, and several of the lecture courses are devoted to the reading of a single poem (see, for example, Hölderlin's Hymn "The Ister").
=== Heidegger and Eastern thought ===
Some writers on Heidegger's work see possibilities within it for dialogue with traditions of thought outside of Western philosophy, particularly East Asian thinking. Despite perceived differences between Eastern and Western philosophy, some of Heidegger's later work, particularly "A Dialogue on Language between a Japanese and an Inquirer", does show an interest in initiating such a dialogue.Heidegger, "A Dialogue on Language between a Japanese and an Inquirer", in On the Way to Language (New York: Harper & Row, 1971). Heidegger himself had contact with a number of leading Japanese intellectuals, including members of the Kyoto School, notably Hajime Tanabe, Kuki Shūzō and Kyoshi Miki.
Furthermore, it has also been claimed that a number of elements within Heidegger's thought bear a close parallel to Eastern philosophical ideas, particularly with Zen Buddhism and Taoism. An account given by Paul Hsao (in Heidegger and Asian Thought) records a remark by Chang Chung-Yuan claiming that "Heidegger is the only Western Philosopher who not only intellectually understands but has intuitively grasped Taoist thought."
According to Tomonubu Imamichi, the concept of Dasein was inspired—although Heidegger remains silent on this—by Okakura Kakuzo's concept of das-in-der-Welt-sein (being in the world) expressed in The Book of Tea to describe Zhuangzi's philosophy, which Imamichi's teacher had offered to Heidegger in 1919, after having studied with him the year before. Tomonubu Imamichi, In Search of Wisdom. One Philosopher's Journey, Tokyo, International House of Japan, 2004 (quoted by Anne Fagot-Largeau during her lesson at the Collège de France on December 7, 2006).
Some scholars interested in the relationships between Western philosophy and the history of ideas in Islam and Arabic philosophical medieval sources may have been influenced by Heidegger's work. See for instance: Nader El-Bizri, The Phenomenological Quest between Avicenna and Heidegger (Binghamton, N.Y.: Global Publications SUNY, 2000)
==Heidegger and Nazism==
=== The rectorate ===
Adolf Hitler was named Chancellor of Germany on January 30, 1933. Heidegger was elected Rector of the University of Freiburg on April 21, 1933, assuming the position the following day, and on May 1 he joined the Nazi Party. Heidegger delivered his inaugural address, the Rektoratsrede, on May 27. It was entitled "The Self-Assertion of the German University", and became notorious for its praise of Nazism. 
His tenure as Rector was, however, fraught with difficulties from the outset. Some Nazi education officials viewed him as a rival, while others saw his efforts as comical. Some of Heidegger's fellow Nazis also ridiculed his philosophical writings as gibberish. He finally offered his resignation on April 23, 1934, and it was accepted on April 27. Heidegger remained a member of both the academic faculty and of the Nazi party until the end of the war. 
Philosophical historian Hans Sluga places Heidegger's embrace of National Socialism during this period within the context of a similar and often even more enthusiastic acceptance of Nazism from many other German philosophers. He characterises Heidegger's stance while Rector in the following way:
:Though as rector he prevented students from displaying an anti-Semitic poster at the entrance to the university and from holding a book burning, he kept in close contact with the Nazi student leaders and clearly signaled to them his sympathy with their activism.Hans Sluga, Heidegger's Crisis: Philosophy and Politics in Nazi Germany (Cambridge, Massachusetts, & London: Harvard University Press, 1993), p. 149.
In 1945 Heidegger wrote a defence of his term as rector, which he gave to his son Hermann, and which was published in 1983. In it Heidegger referred to his 1933–34 involvement in the following terms:
:The rectorate was an attempt to see something in the movement that had come to power, beyond all its failings and crudeness, that was much more far-reaching and that could perhaps one day bring a concentration on the Germans' Western historical essence. It will in no way be denied that at the time I believed in such possibilities and for that reason renounced the actual vocation of thinking in favor of being effective in an official capacity. In no way will what was caused by my own inadequacy in office be played down. But these points of view do not capture what is essential and what moved me to accept the rectorate.Heidegger, "The Rectorate 1933/34: Facts and Thoughts", in Günther Neske & Emil Kettering (eds.), Martin Heidegger and National Socialism: Questions and Answers (New York: Paragon House, 1990), p. 29.
=== Treatment of Husserl ===
Beginning in 1917 Edmund Husserl championed Heidegger's work and helped him secure the retiring Husserl's chair in Philosophy at the University of Freiburg. Seyla Benhabib, The Reluctant Modernism Of Hannah Arendt (Rowman and Littlefield, 2003, p. 120.)
On April 6, 1933, the Reichskommissar of Baden province, Robert Wagner, suspended all Jewish government employees, including present and retired faculty at the University of Freiburg. Heidegger's predecessor as rector formally notified Edmund Husserl of his "enforced leave of absence" on April 14, 1933. 
Heidegger became rector of the University of Freiburg on April 22, 1933. The following week the national Reich law of April 28, 1933 replaced Reichskommissar Wagner's decree. The Reich law required the firing of Jewish professors from German universities, including those, such as Husserl, who had previously converted to Christianity. The termination of the retired professor Husserl's academic privileges thus involved no specific action on Heidegger's part. Seyla Benhabib, The Personal is not the Political (October/November 1999 issue of Boston Review.)
Heidegger had by then broken off contact with Husserl other than through intermediaries. Heidegger later claimed that the relationship with Husserl had already become strained after Husserl publicly "settled accounts" with Heidegger and Max Scheler in the early 1930s.Martin Heidegger, "Der Spiegel Interview", in Günther Neske & Emil Kettering (eds.), Martin Heidegger and National Socialism: Questions and Answers (New York: Paragon House, 1990), p. 48.
Heidegger did not attend his former mentor's cremation in 1938. In 1941, under pressure from publisher Max Niemeyer, Heidegger agreed to remove the dedication to Husserl from Being and Time (restored in post-war editions).Rüdiger Safranski, Martin Heidegger: Between Good and Evil (Cambridge, Mass., & London: Harvard University Press, 1998), pp. 253-8.
Heidegger's behavior towards Husserl has evoked controversy. Hannah Arendt had initially suggested that Heidegger's behavior precipitated Husserl's death. She called him a "potential murderer." However, she later recanted this accusation.Elzbieta Ettinger,Hannah Arendt – Martin Heidegger, (New Haven, Conn., & London: Yale University Press, 1995), p. 37.
=== Post-rectorate National Socialist period ===
After the spectacular failure of Heidegger's rectorship, he withdrew from most political activity, without canceling his membership in the NSDAP. Nevertheless, references to National Socialism continued to appear in his work, usually in ambiguous ways.
In the course of his 1935 lectures, Heidegger referred to the "inner truth and greatness of this movement" (die innere Wahrheit und Größe dieser Bewegung), that is, of National Socialism. This phrase remained when the lectures were published in 1953 under the title, An Introduction to Metaphysics; however, Heidegger added a parenthetical qualification, without mentioning this change at the time of publication: "(namely, the confrontation of planetary technology and modern humanity) (nämlich die Begegnung der planetarisch bestimmten Technik und des neuzeitlichen Menschen)."Rainer Marten, letter to Jürgen Habermas, January 28, 1988, cited by Habermas in "Work and Weltanschauung: the Heidegger Controversy from a German Perspective", Critical Inquiry 15 (1989), pp. 452–54.
In the lectures of 1942, published posthumously as Hölderlin's Hymn "The Ister", Heidegger makes the following remark:
:Today—if one still reads such books at all—one can scarcely read a treatise or book on the Greeks without everywhere being assured that here, with the Greeks, "everything" is "politically" determined. In the majority of "research results", the Greeks appear as the pure National Socialists. This overenthusiasm on the part of academics seems not even to notice that with such "results" it does National Socialism and its historical uniqueness no service at all, not that it needs this anyhow.Heidegger, Hölderlin's Hymn "The Ister" (Bloomington & Indianapolis: Indiana University Press, 1996), pp. 79-80.
Karl Löwith met Heidegger in 1936 while the latter was visiting Rome to lecture on Hölderlin. In an account set down in 1940 and not intended for publication, Löwith recounted an exchange with Heidegger over editorials published in the Neue Zürcher Zeitung:
:[I] told him that I did not agree either with the way in which Karl Barth was attacking him or in the way [Emil] Staiger was defending him, because my opinion was that his taking the side of National Socialism was in agreement with the essence of his philosophy. Heidegger told me unreservedly that I was right and developed his idea by saying that his idea of historicity [Geschichtlichkeit] was the foundation for his political involvement.
Löwith went on to say:
:In response to my remark that I could understand many things about his attitude, with one exception, which was that he would permit himself to be seated at the same table with a figure such as Julius Streicher (at the German Academy of Law), he was silent at first. At last he uttered this well-known rationalisation (which Karl Barth saw so clearly), which amounted to saying that "it all would have been much worse if some men of knowledge had not been involved." And with a bitter resentment towards people of culture, he concluded his statement: "If these gentlemen had not considered themselves too refined to become involved, things would have been different, but I had to stay in there alone." To my reply that one did not have to be very refined to refuse to work with a Streicher, he answered that it was useless to discuss Streicher; the Stürmer was nothing more than "pornography." Why didn't Hitler get rid of this sinister individual? He didn't understand it.ibid, p. 477
For commentators such as Habermas who credit Löwith's account, there are a number of generally shared implications: one is that Heidegger did not turn away from National Socialism per se but became deeply disaffected with the official philosophy and ideology of the party, as embodied by Alfred Bäumler or Alfred Rosenberg, whose biologistic racist doctrines he never accepted.
=== Post-war period ===
Heidegger's affair with Hannah Arendt occurred some time before Heidegger's involvement in National Socialism, but her friendship with Heidegger did not end when she moved to Heidelberg to continue her studies under Karl Jaspers. Arendt later spoke on his behalf at his denazification hearings. Jaspers spoke against him at the same hearings, suggesting he would have a detrimental influence on German students because of his powerful teaching presence. Arendt cautiously resumed their friendship after the war, despite or even because of the widespread contempt for Heidegger and his political sympathies. The denazification hearings resulted in Heidegger being forbidden to teach between 1945 and 1951. One consequence of his disfavour in Germany was that Heidegger began to engage far more in the French philosophical scene.
In a lecture on technology delivered at Bremen in 1949, Heidegger made the following controversial remark:
:Agriculture is now a motorized food industry, the same thing in its essence as the production of corpses in the gas chambers and the extermination camps, the same thing as blockades and the reduction of countries to famine, the same thing as the manufacture of hydrogen bombs.Cited in Philippe Lacoue-Labarthe, Heidegger, Art and Politics: The Fiction of the Political (Oxford: Blackwell, 1990), p. 34.
This quotation has been the subject of widespread criticism and interpretation. Philippe Lacoue-Labarthe, for example, described it as "scandalously inadequate."Lacoue-Labarthe, Heidegger, Art and Politics, p. 34.
In 1967 Heidegger had an encounter with the poet Paul Celan, a Jew who had survived concentration camps operated by the Nazis' Romanian allies. While admiring aspects of Heidegger's writings, Celan had long been aware of Heidegger's involvement with National Socialism. 
On July 24 Celan gave a reading at the University of Freiburg, attended by Heidegger. Heidegger there presented Celan with a copy of What is Called Thinking?, and invited him to visit him at his hut at Todtnauberg, an invitation which Celan accepted. On July 25 Celan visited Heidegger at his retreat, signing the guestbook and spending some time walking and talking with Heidegger. The details of their conversation are not known, but the meeting was the subject of a subsequent poem by Celan, entitled "Todtnauberg" (dated August 1, 1967). 
The enigmatic poem and the encounter have been discussed by numerous writers on Heidegger and Celan, notably Lacoue-Labarthe. A common interpretation of the poem is that it concerns, in part, Celan's wish for Heidegger to apologize for Heidegger's behavior during the Nazi era.
=== The Der Spiegel interview ===
On September 23, 1966, Heidegger gave an interview to Der Spiegel magazine, in which he agreed to discuss his political past provided that the interview be published posthumously (it was published on May 31, 1976). In the interview, Heidegger defended his entanglement with National Socialism in two ways: first, he argued that there was no alternative, saying that he was trying to save the university (and science in general) from being politicized and thus had to compromise with the Nazi administration. Second, he admitted that he saw an "awakening" ("Aufbruch") which might help to find a "new national and social approach" but stated that he changed his mind about this in 1934, largely prompted by the violence of the Night of the Long Knives.
Thus, in his Der Spiegel interview Heidegger defended as double-speak his 1935 lecture describing the "inner truth and greatness of this movement." He affirmed that Nazi informants who observed his lectures would understand that by "movement" he meant National Socialism. However, Heidegger asserted that his dedicated students would know this statement was no elegy for the NSDAP. Rather, he meant it as he expressed it in the parenthetical clarification later added to An Introduction to Metaphysics (1953), namely, "the confrontation of planetary technology and modern humanity."
The Löwith account from 1936 has been cited to contradict the account given in the Spiegel interview in two ways: that there was no decisive break with National Socialism in 1934 and that Heidegger was willing to entertain more profound relations between his philosophy and political involvement. The Der Spiegel interviewers did not bring up Heidegger's 1949 quotation comparing the industrialization of agriculture to the extermination camps. In fact, the Der Spiegel interviewers were not in possession of much of the evidence now known for Heidegger's Nazi sympathies.For critical readings of the interview (published in 1966 as "Only a God Can Save Us", Der Spiegel), see the "Special Feature on Heidegger and Nazism" in Critical Inquiry 15:2 (Winter 1989), particularly the contributions by Jürgen Habermas and Blanchot. The issue includes partial translations of Derrida's Of Spirit and Lacoue-Labarthe's Of Spirit and Heidegger, Art, and Politics: the Fiction of the Political.
== Influence and reception in France ==
Heidegger was one of the most influential philosophers of the 20th century, and his ideas have penetrated into many areas, but in France there is a very long and particular history of reading and interpreting his work.
=== Existentialism and pre-war influence ===
Heidegger's influence on French philosophy began in the 1930s, when Being and Time, "What is Metaphysics?" and other Heideggerian texts were read by Jean-Paul Sartre and other existentialists, as well as by thinkers such as Emmanuel Lévinas, Alexandre Kojève and Georges Bataille.On the history of the French translation of Heidegger's "What is Metaphysics?", and on its importance to the French intellectual scene, cf. Denis Hollier, "Plenty of Nothing", in Hollier (ed.), A New History of French Literature (Cambridge, Massachusetts, Harvard University Press, 1989), pp. 894–900. Because Heidegger's discussion of ontology (the study of being) is rooted in an analysis of the mode of existence of individual human beings (Dasein, or being-there), his work has often been associated with existentialism. The influence of Heidegger on Sartre's Being and Nothingness is marked, but Heidegger felt that Sartre had misread his work, as he argued in later texts such as the "Letter on 'Humanism'." In that text, intended for a French audience, Heidegger explained this misreading in the following terms:
:Sartre's key proposition about the priority of existentia over essentia [that is, Sartre's statement that "existence precedes essence"] does, however, justify using the name "existentialism" as an appropriate title for a philosophy of this sort. But the basic tenet of "existentialism" has nothing at all in common with the statement from Being and Time [that "the 'essence' of Dasein lies in its existence"]—apart from the fact that in Being and Time no statement about the relation of essentia and existentia can yet be expressed, since there it is still a question of preparing something precursory.Heidegger, "Letter on 'Humanism'", Pathmarks (Cambridge & New York: Cambridge University Press, 1998), pp. 250–1.
"Letter on 'Humanism'" is often seen as a direct response to Sartre's 1945 lecture "Existentialism is a Humanism." Aside from merely disputing readings of his own work, however, in "Letter on 'Humanism,'" Heidegger asserts that "Every humanism is either grounded in a metaphysics or is itself made to be the ground of one." Heidegger's largest issue with Sartre's existential humanism is that, while it does make a humanistic 'move' in privileging existence over essence, "the reversal of a metaphysical statement remains a metaphysical statement." From this point onward in his thought, Heidegger attempted to think beyond metaphysics to a place where the articulation of the fundamental questions of ontology were fundamentally possible.
=== Post-war forays into France ===
After the war, Heidegger was banned from university teaching for a period on account of his activities as Rector of Freiburg University. He developed a number of contacts in France, where his work continued to be taught, and a number of French students visited him at Todtnauberg (see, for example, Jean-François Lyotard's brief account in Heidegger and "the jews", which discusses a Franco-German conference held in Freiburg in 1947, one step toward bringing together French and German students). Heidegger subsequently made several visits to France, and made efforts to keep abreast of developments in French philosophy by way of correspondence with Jean Beaufret, an early French translator of Heidegger, and with Lucien Braun.
=== Derrida and deconstruction ===
Deconstruction came to Heidegger's attention in 1967 by way of Lucien Braun's recommendation of Jacques Derrida's work (Hans-Georg Gadamer was present at an initial discussion and indicated to Heidegger that Derrida's work came to his attention by way of an assistant). Heidegger expressed interest in meeting Derrida personally after the latter sent him some of his work. There was discussion of a meeting in 1972, but this failed to take place. Heidegger's interest in Derrida is said by Braun to have been considerable (as is evident in two letters, of September 29, 1967 and May 16, 1972, from Heidegger to Braun). Braun also brought to Heidegger's attention the work of Michel Foucault. Foucault's relation to Heidegger is a matter of considerable difficulty; Foucault acknowledged Heidegger as a philosopher whom he read but never wrote about. (For more on this see Penser à Strasbourg, Jacques Derrida, et al., which includes reproductions of both letters and an account by Braun, "À mi-chemin entre Heidegger et Derrida").
Jacques Derrida made emphatic efforts to displace the understanding of Heidegger's work that had been prevalent in France from the period of the ban against Heidegger teaching in German universities, which amounted to an almost wholesale rejection of the influence of Jean-Paul Sartre and existentialist terms. In Derrida's view, deconstruction is a tradition inherited via Heidegger (the French term "déconstruction" is a term coined to translate Heidegger's use of the words "Destruktion"—literally "destruction"-and "Abbau"-more literally "de-building"). According to Derrida, Sartre's interpretation of Dasein and other key Heideggerian concerns is overly psychologistic, anthropocentric, and misses the historicality central to Dasein in Being and Time. Because of Derrida's vehement attempts to "rescue" Heidegger from his existentialist interpreters (and also from Heidegger's "orthodox" followers), Derrida has at times been represented as a "French Heidegger", to the extent that he, his colleagues, and his former students are made to go proxy for Heidegger's worst (political) mistakes, despite ample evidence that the reception of Heidegger's work by later practitioners of deconstruction is anything but doctrinaire.
=== The Farías debate ===
Derrida, Lacoue-Labarthe, and Jean-François Lyotard, among others, all engaged in debate and disagreement about the relation between Heidegger's philosophy and his politics. These debates included the question of whether it was possible to do without Heidegger's philosophy, a position which Derrida in particular rejected. Forums where these debates took place include the proceedings of the first conference dedicated to Derrida's work, published as "Les Fins de l'homme à partir du travail de Jacques Derrida: colloque de Cerisy, 23 juillet-2 août 1980", Derrida's "Feu la cendre/cio' che resta del fuoco", and the studies on Paul Celan by Lacoue-Labarthe and Derrida which shortly preceded the detailed studies of Heidegger's politics published in and after 1987.
When in 1987 Víctor Farías published his book Heidegger et le nazisme, this debate was taken up by many others, some of whom were inclined to disparage so-called "deconstructionists" for their association with Heidegger's philosophy. Derrida and others not only continued to defend the importance of reading Heidegger, but attacked Farías, on the grounds of poor scholarship and for what they saw as the sensationalism of his approach. Not all scholars agreed with this negative assessment: Richard Rorty, for example, declared that "[Farias'] book includes more concrete information relevant to Heidegger's relations with the Nazis than anything else available, and it is an excellent antidote to the evasive apologetics that are still being published."Richard Rorty, review of Heidegger and Nazism in the New Republic, quoted on the Temple University Press promotional page for Heidegger and Nazism
=== Bernard Stiegler ===
More recently, Heidegger's thought has considerably influenced the work of the French philosopher Bernard Stiegler. This is evident even from the title of Stiegler's multi-volume magnum opus, La technique et le temps (volume one translated into English as Technics and Time, 1: The Fault of Epimetheus).Bernard Stiegler, Technics and Time, 1: The Fault of Epimetheus (Stanford: Stanford University Press, 1998), part 2. Stiegler offers an original reading of Heidegger, arguing that there can be no access to "originary temporality" other than via material, that is, technical, supports, and that Heidegger recognised this in the form of his account of world historicality, yet in the end suppressed that fact. Stiegler understands the existential analytic of Being and Time as an account of psychic individuation, and his later "history of being" as an account of collective individuation. He understands many of the problems of Heidegger's philosophy and politics as the consequence of Heidegger's inability to integrate the two.
== Criticism ==
Heidegger's influence upon 20th century continental philosophy is unquestioned and has produced a variety of critical responses.
=== Early criticisms ===
The content of Being and Time, according to Husserl, claimed to deal with ontology, but from Husserl's perspective only did so in the first few pages of the book. Having nothing further to contribute to an ontology independent of human existence, Heidegger changed the topic to Dasein. Whereas Heidegger argued that the question of human existence is central to the pursuit of the question of being, Husserl criticized this as reducing phenomenology to "philosophical anthropology" and offering an abstract and incorrect portrait of the human being.See Edmund Husserl, Psychological and transcendental phenomenology and the confrontation with Heidegger (1927-1931) (Dordrecht: Kluwer, 1997).
The Neo-Kantian Ernst Cassirer and Heidegger engaged in an influential debate located in Davos in 1929, concerning the significance of Kantian notions of freedom and rationality. Whereas Cassirer defended the role of rationality in Kant, Heidegger argued for the priority of the imagination. Dilthey's student Georg Misch wrote the first extended critical appropriation of Heidegger in Lebensphilosophie und Phänomenologie. Eine Auseinandersetzung der Diltheyschen Richtung mit Heidegger und Husserl, Leipzig 1930 (3. ed. Stuttgart 1964).
=== Left-Hegelianism and critical theory ===
Hegel-influenced Marxist thinkers, especially György Lukács and the Frankfurt School, associated the style and content of Heidegger's thought with German irrationalism and criticized its political implications.
Initially members of the Frankfurt School were positively disposed to Heidegger, becoming more critical at the beginning of the 1930s. Heidegger's student Herbert Marcuse became associated with the Frankfurt School. Initially striving for a synthesis between Hegelian-Marxism and Heidegger's phenomenology, Marcuse later rejected Heidegger's thought for its "false concreteness" and "revolutionary conservativism." Theodor Adorno wrote an extended critique of the ideological character of Heidegger's early and later use of language in the Jargon of Authenticity. Contemporary social theorists associated with the Frankfurt School have remained largely critical of Heidegger's works and influence. In particular, Jürgen Habermas admonishes the influence of Heidegger on recent French philosophy in his polemic against "postmodernism" in The Philosophical Discourse of Modernity (1985). However, recent work by philosopher and critical theorist Nikolas Kompridis tries to show that Heidegger's insights into world disclosure are badly misunderstood and mishandled by Habermas, and are of vital importance for critical theory, offering an important way of renewing that tradition.Nikolas Kompridis, Critique and Disclosure: Critical Theory between Past and Future MIT Press, 2006.Nikolas Kompridis, "Disclosing Possibility: The Past and Future of Critical Theory", International Journal of Philosophical Studies, Volume 13, Issue 3 September 2005 , pages 325 - 351.
=== Reception by Analytic and Anglo-American philosophy ===
Criticism of Heidegger's philosophy has also come from analytic philosophy, beginning with logical positivism. Accusing Heidegger of offering an "illusory" ontology, Rudolf Carnap criticized him, in "The Elimination of Metaphysics Through Logical Analysis of Language" (1932), of committing the fallacy of reification and of wrongly dismissing the logical treatment of language, which, according to Carnap, can only lead to writing "nonsensical pseudo-propositions."
A strong critic of Heidegger's philosophy was the British logical positivist A. J. Ayer. In Ayer's view, he proposed vast, overarching theories regarding existence, which are completely unverifiable through empirical demonstration and logical analysis. For Ayer, this sort of philosophy was a poisonous strain in modern thought and he considered Heidegger to be the worst example of such philosophy which Ayer believed to be entirely useless.
Bertrand Russell commented, expressing the sentiments of many mid-20th-century English-speaking philosophers, that:
:Highly eccentric in its terminology, his philosophy is extremely obscure. One cannot help suspecting that language is here running riot. An interesting point in his speculations is the insistence that nothingness is something positive. As with much else in Existentialism, this is a psychological observation made to pass for logic.Bertrand Russell, Wisdom of the West (New York: Crescent Books, 1989), p. 303.
Roger Scruton stated that:
:His major work Being and Time is formidably difficult—unless it is utter nonsense, in which case it is laughably easy. I am not sure how to judge it, and have read no commentator who even begins to make sense of itJeff Collins, Introducing Heidegger (Thriplow, Cambridge: Icon Books, 1998), p. 7..
The analytic tradition values clarity of expression. Heidegger, however, has on occasion appeared to take an opposing view, stating for example that "those in the crossing must in the end know what is mistaken by all urging for intelligibility: that every thinking of being, all philosophy, can never be confirmed by 'facts,' i.e., by beings. Making itself intelligible is suicide for philosophy. Those who idolize 'facts' never notice that their idols only shine in a borrowed light. They are also meant not to notice this; for thereupon they would have to be at a loss and therefore useless. But idolizers and idols are used wherever gods are in flight and so announce their nearness."Martin Heidegger, Contributions to Philosophy (From Enowning) (Bloomington & Indianapolis: Indiana University Press, 1999), p. 307. Apart from the charge of obscurantism, other analytic philosophers considered the actual content of Heidegger's work to be either faulty and meaningless, vapid or uninteresting.
Not all analytic philosophers, however, have been as hostile. Gilbert Ryle wrote a critical yet positive review of Being and Time and Ludwig Wittgenstein made a remark recorded by Friedrich Waismann: "To be sure, I can imagine what Heidegger means by being and anxiety"Wittgenstein and the Vienna Circle: Conversations Recorded by Friedrich Waismann, Basil Blackwell, Oxford, 1979, p.68 which has been construed by some commentators as sympathetic to Heidegger's philosophical approach. These positive and negative analytic evaluations have been collected in Michael Murray (ed.), Heidegger and Modern Philosophy: Critical Essays (Yale University Press, 1978). Heidegger's reputation within English-language philosophy has slightly improved in philosophical terms in some part through the efforts of Hubert Dreyfus, Richard Rorty, and a recent generation of analytically-oriented phenomenology scholars. Pragmatist Rorty claimed that Heidegger's approach to philosophy in the first half of his career has much in common with that of the latter-day Ludwig Wittgenstein, a significant figure in analytic philosophy. Nevertheless, Rorty asserted that what Heidegger had constructed in his writings was a myth of being rather than an account of itJeff Collins, Introducing Heidegger (Thriplow, Cambridge: Icon Books, 1998), p. 170..
=== Contemporary European reception ===
Even though Heidegger is considered by most observers to be the most influential philosopher of the 20th century in continental philosophy, aspects of his work have been criticised by those who nevertheless acknowledge this influence, such as Hans-Georg Gadamer and Jacques Derrida. Some questions raised about Heidegger's philosophy include the priority of ontology, the status of animals, the nature of the religious, Heidegger's supposed neglect of ethics (Emmanuel Lévinas), the body (Maurice Merleau-Ponty), or sexual difference (Luce Irigaray).
Emmanuel Lévinas was deeply influenced by Heidegger yet became one of his fiercest critics, contrasting the infinity of the good beyond being with the immanence and totality of ontology. Lévinas also condemned Heidegger's involvement with Nazism, stating "One can forgive many Germans, but there are some Germans it is difficult to forgive. It is difficult to forgive Heidegger."Emmanuel Levinas, Nine Talmudic Readings (Indiana University Press, 1990), p. xxv, translated by Annette Aronowicz
== Cinema ==
* The Ister (2004) is a film based on Heidegger's 1942 lecture course on Friedrich Hölderlin, and features Jean-Luc Nancy, Philippe Lacoue-Labarthe, Bernard Stiegler, and Hans-Jürgen Syberberg. http://www.theister.com/
* The film director Terrence Malick translated Heidegger's 1929 essay "Vom Wesen des Grundes" into English. It was published under the title The Essence of Reasons (Evanston: Northwestern University Press, 1969, bilingual edition).
== Bibliography ==
=== Gesamtausgabe ===
Heidegger's collected works are published by Vittorio Klostermann. The Gesamtausgabe was begun during Heidegger's lifetime. He defined the order of publication and controversially dictated that the principle of editing should be "ways not works." Publication has not yet been completed.
The contents are listed here: Heidegger Gesamtausgabe.
=== Selected works ===
A complete list of English translations of Heidegger's work is available here.
Year 	Original German 	English Translation
1927 	Sein und Zeit, Gesamtausgabe Volume 2 	Being and Time, trans. by John Macquarrie and Edward Robinson (London: SCM Press, 1962); re-translated by Joan Stambaugh (Albany: State University of New York Press, 1996)
1929 	Kant und das Problem der Metaphysik, Gesamtausgabe Volume 3 	Kant and the Problem of Metaphysics, trans. by Richard Taft (Bloomington: Indiana University Press, 1990)
1935 	Einführung in die Metaphysik (1935, published 1953), Gesamtausgabe Volume 40 	An Introduction to Metaphysics, trans. by Gregory Fried and Richard Polt (New Haven: Yale University Press, 2000)
1936–8 	Beiträge zur Philosophie (Vom Ereignis) (1936–1938, published 1989), Gesamtausgabe Volume 65 	Contributions to Philosophy (From Enowning), trans. by Parvis Emad and Kenneth Maly (Bloomington: Indiana University Press, 1999)
1942 	Hölderlins Hymne »Der Ister« (1942, published 1984), Gesamtausgabe Volume 53 	Hölderlin's Hymn "The Ister", trans. by William McNeill and Julia Davis (Bloomington: Indiana University Press, 1996)
1949 	"Die Frage nach der Technik", in Gesamtausgabe Volume 7 	"The Question Concerning Technology" , in Heidegger, Martin, Basic Writings: Second Edition, Revised and Expanded, ed. David Farrell Krell (New York: Harper Collins, 1993)
1950 	Holzwege, Gesamtausgabe Volume 5. This collection includes "Der Ursprung der Kunstwerkes" (1935–1936)	Off the Beaten Track. This collection includes "The Origin of the Work of Art"
1955–56	Der Satz vom Grund, Gesamtausgabe Volume 10 	The Principle of Reason, trans. Reginald Lilly (Bloomington, Indiana University Press, 1991)
1955–57	Identität und Differenz, Gesamtausgabe Volume 11 	Identity and Difference, trans. by Joan Stambaugh (New York: Harper & Row, 1969)
1959 	Gelassenheit, in Gesamtausgabe Volume 16 	Discourse On Thinking
1959 	Unterwegs zur Sprache, Gesamtausgabe Volume 12 	On the Way To Language, published without the essay "Die Sprache" ("Language") by arrangement with Heidegger
=== On Being and Time ===
* William Blattner, Heidegger's Temporal Idealism
* Taylor Carman, Heidegger's Analytic: Interpretation, Discourse, and Authenticity in "Being and Time"
* Hubert Dreyfus, Being-in-the-World: A Commentary on Heidegger's Being and Time, Division I
* Graham Harman, Tool-Being: Heidegger and the Metaphysics of Objects
* Michael Gelven, A Commentary on Heidegger's Being and Time, Revised Edition
* E.F. Kaelin, "Heidegger's Being & Time: A Reading for Readers"
* Magda King, A Guide to Heidegger's Being and Time
* Theodore Kisiel, The Genesis of Heidegger's Being and Time
* Stephen Mulhall, Heidegger and Being and Time
* James Luchte, Heidegger's Early Philosophy: The Phenomenology of Ecstatic Temporality
=== Biographies ===
* Victor Farias, Heidegger and Nazism, ed. by Joseph Margolis and Tom Rockmore
* Hugo Ott, Martin Heidegger: A Political Life
* Otto Poeggeler, Martin Heidegger's Path of Thinking, trans. by D. Magurshak and S. Barber, Humanities Press, 1987.
* Rüdiger Safranski, Martin Heidegger: Between Good and Evil
* John van Buren, The Young Heidegger: Rumor of the Hidden King
=== Politics and Nazism ===
* Pierre Bourdieu, The Political Ontology of Martin Heidegger
* Miguel de Beistegui, Heidegger and the Political: Dystopias
* Jacques Derrida, Of Spirit: Heidegger and the Question
* Victor Farías, Heidegger and nazism, Philadelphia, Temple University Press, 1989.
* Emmanuel Faye, Heidegger, l'introduction du nazisme dans la philosophie : autour des séminaires inédits de 1933-1935, Paris, Albin Michel, 2005. ISBN 2-226-14252-5 in French language
* Annemarie Gethmann-Siefert & Otto Pöggeler (eds.), Heidegger und die praktische Philosophie, Frankfurt a. M., Suhrkamp, 1989. in German language
* Dominique Janicaud, The Shadow of That Thought
* Philippe Lacoue-Labarthe, "Transcendence Ends in Politics", in Typography: Mimesis, Philosophy, Politics
* Philippe Lacoue-Labarthe, Heidegger, Art, and Politics: The Fiction of the Political
* Karl Löwith, Martin Heidegger and European Nihilism
* Karl Löwith Heidegger's Existentialism
* Jean-François Lyotard, Heidegger and "the jews"
* Günther Neske & Emil Kettering (eds.), Martin Heidegger and National Socialism: Questions and Answers
* Political Texts – Rectoral Addresses
* Tom Rockmore and Joseph Margolis (ed.), The Heidegger Case
* Daniel Ross, Heidegger and the Question of the Political
* Hans Sluga, Heidegger's Crisis: Philosophy and Politics in Nazi Germany
* Iain Thomson, Heidegger on Ontotheology: Technology and the Politics of Education
* Dana Villa, Arendt and Heidegger: the Fate of the Political
* Richard Wolin (ed.), The Heidegger Controversy ISBN 0-262-23166-2.
=== Other secondary literature ===
* Robert Bernasconi, Heidegger in Question: The Art of Existing
* Walter A. Brogan, Heidegger and Aristotle: The Twofoldness of Being
* Gabriel Cercel / Cristian Ciocan (eds), The Early Heidegger (Studia Phaenomenologica I, 3-4), Bucharest: Humanitas, 2001, 506 p., including letters by Heidegger and Pöggeler, and articles by Walter Biemel, Friedrich-Wilhelm von Herrmann, Theodore Kisiel, Marion Heinz, Alfred Denker
* Steven Galt Crowell, Husserl, Heidegger, and the Space of Meaning: Paths toward Transcendental Phenomenology
* Jacques Derrida, "Ousia and Gramme: Note on a Note from Being and Time", in Margins of Philosophy
* Paul Edwards, Heidegger's Confusions
* Christopher Fynsk, Heidegger: Thought and Historicity
* Graham Harman, Heidegger Explained
* Philippe Lacoue-Labarthe, Poetry as Experience
* Philippe Lacoue-Labarthe, Heidegger and the Politics of Poetry
* William McNeill, The Glance of the Eye: Heidegger, Aristotle, and the Ends of Theory
* William McNeill, The Time of Life: Heidegger and Ethos
* Jean-Luc Nancy, "The Decision of Existence", in The Birth to Presence
* Herman Philipse, Heidegger's Philosophy of Being: A Critical Interpretation
* Richard Polt, Heidegger: An Introduction
* François Raffoul, Heidegger and the Subject
* François Raffoul & David Pettigrew (ed), Heidegger and Practical Philosophy 
* John Sallis, Echoes: After Heidegger
* John Sallis (ed), Reading Heidegger: Commemorations, including articles by Robert Bernasconi, Jacques Derrida, Rodolphe Gasché, and John Sallis, among others.
* Reiner Schürmann, Heidegger on Being and Acting: From Principles to Anarchy
* Tony See, Community without Identity: The Ontology and Politics of Heidegger
* Adam Sharr, Heidegger's Hut
* Bernard Stiegler, Technics and Time, 1: The Fault of Epimetheus
* Leo Strauss, "An Introduction to Heideggerian Existentialism," in The Rebirth of Classical Political Rationalism (University of Chicago: 1989).
* Andrzej Warminski, Readings in Interpretation: Hölderlin, Hegel, Heidegger
=== Reception in France ===
* Jean Beaufret, Dialogue avec Heidegger, 4 vols.
* Dominique Janicaud, Heidegger en France, 2 vols.
* Ethan Kleinberg, Generation Existential: Heidegger's Philosophy in France, 1927–1961
=== Influence on Japanese philosophy ===
* Mayeda, Graham. 2006. Time, space and ethics in the philosophy of Watsuji Tetsurō, Kuki Shūzō, and Martin Heidegger (New York: Routledge, 2006). ISBN 0415976731 (alk. paper).
=== Influence on Asian philosophy ===
* Parkes, Graham. 1987. Heidegger and Asian Thought. Honolulu: University of Hawaii Press. ISBN 0824810643.
==References==
== External links ==
=== General information ===
* German Heidegger Society 
* Der Spiegel Interview
=== Works by Heidegger ===
* English translations of Heidegger's works
* Heidegger works on archive.org
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Category:persons