The Development of Ethics is a selective historical and critical study of moral philosophy in the Socratic tradition, with special attention to Aristotelian naturalism, its formation, elaboration, criticism, and defence. It discusses the main topics of moral philosophy as they have developed historically, including: the human good, human nature, justice, friendship, and morality; the methods of moral inquiry; the virtues and their connexions; will, freedom, and responsibility; reason and emotion; relativism, subjectivism, and realism; the theological aspect of morality. This volume examines ancient and medieval philosophy up to the sixteenth century; Volumes 2 and 3 will continue the story up to Rawls''s Theory of Justice. The present volume begins with Socrates, the Cyrenaics and Cynics, and Plato, and then offers a fuller account of Aristotle, stressing the systematic naturalism of his position. The Stoic position is compared with the Aristotelian at some length; Epicureans and Scept