In its vast scope, this book presents the continuum of Western philosophy. Ranging from ancient Greece to nineteenth-century America, it traces the history of our civilization through the seminal works of its most influential thinkers. Each philosopher in this volume made intellectual history; each created a revolution in ideas; each reaffirmed man’s view of himself as a sentient being capable of creating order out of the baffling contradictions of existence. And the most powerful reflections and speculations of each are represented here. Plato: Apology, Crito and the Death of Socrates, from PhadoAristotle: PoeticsSt. Ansem: The ontological Proof of St. Ansem, from ProslogiumSt. Thomas Aquinas: St. Thomas’ Proofs of God’s Existence, from the SummaTheologicaRené Descartes: Meditations on the First PhilosophyDavid Hume: An Inquiry Concerning Human UnderstandingImmanuel Kant: Prolegomena to Any Future MetaphysicsJohn Stuart Mill: UtilitarianismWilliam James: The Will to Believe