What is the human good? What are the primary virtues that make a good person? What makes an action right? Must we try to maximize good consequences? How can we know what is right and good? Can morality be rationally justified? In Ethics Through History, Terence Irwin addresses such fundamental questions, making these central debates intelligible to readers without an extensive background in philosophy. He provides a historical and philosophical discussion of major questions and key philosophers in the history of ethics, in the tradition that begins with Socrates onwards. Irwin covers ancient, medieval, and modern moral philosophers whose views have helped to form the agenda for contemporary ethical theory, paying attention to the strengths and weaknesses of their respective positions.