Contents -- Preface -- 1. Choice without Preference: The Problem of "Buridan's Ass" -- 2. Nicholas of Cusa on the Koran: A Fifteenth-Century Encounter with Islam -- 3. On Learned Ignorance and the Limits of Knowledge -- 4. Unanswerable Questions and Insolubilia -- 5. Omniscience and Our Understanding of God's Knowledge -- 6. Issues of Infinite Regress -- 7. Being qua Being -- 8. Nonexistents Then and Now -- 9. Thomism: Past, Present, and Future -- 10. Respect for Tradition (And the Catholic Philosopher Today) -- Index.