What does happiness consist in? Is human freedom genuine or only apparent? Is there a way of distinguishing between moral good and evil? These perennial questions have received different replies in the course of history. The course Worldviews and Ethics critically considers the answers offered by a selection of philosophies and religions, ancient and modern, Western and Eastern, as an exercise in understanding and comparing varying views of human reality. The notes for the course are gathered in this book in the form of dialogues with representatives of different worldviews: Aristotle, the Stoics, Buddhism, Islam, Nietzsche, and Mounier.