Introduction; 1. Aquinas's philosophy in its historical setting Jan A. Aertsen; 2. Aristotle and Aquinas Joseph Owens; 3. Aquinas and Islamic and Jewish thinkers David B. Burrell; 4. Metaphysics John F. Wippel; 5. Philosophy of mind Norman Kretzmann; 6. Theory of knowledge Scott MacDonald; 7. Ethics Ralph McInerny; 8. Law and politics Paul E. Sigmund; 9. Theology and philosophy Mark D. Jordan; 10. Biblical commentary and philosophy Eleonore Stump.