Abstract
There is now, I think, widespread consensus that the field of ethical theory would benefit from taking more into account a tradition of ethical thinking which is best represented in ancient ethics: that of eudaimonism. These theories take the agent’s final end as primary, and hold that to be happiness. There has been a renewal of interest in Aristotle’s ethics, and a development of various forms of what is called ‘virtue ethics’. However, a true appraisal of the interest and importance for us of eudaimonistic theories needs a fuller study of the general structure of these theories than has been readily available. Too much focus on Aristotle, for example, can hide the extent to which some features of his theory are idiosyncratic to him, and not typical of eudaimonistic theory generally.