Kant is the greatest thinker of both the Enlightenment and the modern age, having initiated what he called a "Copernican Revolution" in philosophy, one which continues to resonate in our own time. Kant says that philosophy deals with four questions: What can I know? What ought I to do? What can I hope? What is the human being? We will examine and evaluate his answers to these questions, taking in metaphysics, epistemology, ethics, religion, politics and anthropology.