His ethics are based on eudaimonia, variously translated as “happiness,” “prosperity,” “flourishing,” or “success.” A “great-souled” citizen who lives a life of virtue can expect to achieve eudaimonia, which Aristotle argues is the highest good for man. Following Plato, Aristotle gives a significant role in moral life the virtues, fixed habits of behavior that lead to good outcomes; the main virtues are courage, justice, prudence and temperance. The highest form of life is, however, purely intellectual activity.