Posted: Feb 11, 2012 6:49 pm
All of Nietzsche's works, "The Critique of Pure Reason" by Kant, "L'Etre et le Neant (Being and Nothingness)" by Jean-Paul Sartre, "Godel, Escher, and Bach" is an interesting read by Douglas Hofstadter, though I'm not sure it counts as philosophy.