What is knowledge? How should we live? Can I trust my powers of reasoning? What is the nature of mind/soul? These, and other connected questions, were searchingly examined by Plato and Aristotle, and subsequently by Hellenistic thinkers of the Epicurean, Stoic and Neoplatonist schools living in an unsettled period of history. Each year will offer a special topic in philosophy relevant to the ancient world. This course will be taught in the format of an Oxford tutorial with smaller groups of students meeting each week to discuss assigned readings and present short papers. Part of the Track One: Ancient Greece and Rome: The Foundations of Western Civilization of the European Studies Program.