Rene DESCARTES : The Geometry of Rene Descartes

David HUME : An Enquiry Concerning Human Understanding : And Selections from a Treatise of Human Nature

Dr. W. WINDELBAND and Herbert Ernest CUSHMAN : History of Ancient Philosophy

Martin LUTHER : Martin Luther : Selections from His Writings

Karl MARX : Capital, the Communist Manifesto and Other Writings

Jonathan BARNES : The Presocratic Philosophers

Martin HEIDEGGER : Kant and the Problem of Metaphysics

René DESCARTES : Descartes’ Discourse on Method, and Other Writings

Mark MORFORD : The Roman Philosophers : From the Time of Cato the Censor to the Death of Marcus Aurelius

Martin HEIDEGGER : Being and Time