'We are looking for the things that enable us to live a noble and happy life...a
nd what prospects decent people will have of acquiring any of them.' The Eudemia
n Ethics is a major treatise on moral philosophy whose central concern is what m
akes life worth living. Aristotle considers the role of happiness, and what happ
iness consists of, and he analyses various factors that contribute to it: human
agency, the relation between action and virtue, and the concept of virtue itself
. Moral and intellectual virtues are classified and considered, and finally the
roles of friendship and pleasure.