Before revision: It was greatly influenced by the writings of Søren Kierkegaard and Friedrich Nietzsche in the 19th century and other early-to-mid 20th-century philosophers, including phenomenologists Edmund Husserl and Martin Heidegger, psychoanalyst Jacques Lacan, structuralist Roland Barthes, Georges Bataille, and the later work of Ludwig Wittgenstein.
After revision: It was greatly influenced by the writings of Søren Kierkegaard ,Friedrich Nietzsche and Sigmund Freud in the 19th century and other early-to-mid 20th-century philosophers, including phenomenologists Edmund Husserl and Martin Heidegger, psychoanalyst Jacques Lacan, structuralist Roland Barthes, Georges Bataille, and the later work of Ludwig Wittgenstein.