Columbia subject headings:
Heidegger, Martin, 1889-1976.
Kant, Immanuel, 1724-1804.
Nietzsche, Friedrich Wilhelm, 1844-1900.
Plato.
Harvard subject headings:
Heidegger, Martin, 1889-1976
Kant, Immanuel, 1724-1804
Nietzsche, Friedrich Wilhelm, 1844-1900
Plato
Princeton subject headings:
Heidegger, Martin, 1889-1976.
Kant, Immanuel, 1724-1804.
Nietzsche, Friedrich Wilhelm, 1844-1900.
Plato.