Oxford Studies in Ancient Philosophy is a volume of original articles on all aspects of ancient philosophy. The articles may be of substantial length, and include critical notices of major books. OSAP is now published twice yearly, in both hardback and paperback. This special volume of Oxford Studies in Ancient Philosophy presents sixteen specially written essays on virtue and happiness, and the treatment of these topics by thinkers from the fifth century BC to the third century AD. It is published in honour of Julia Annas (University of Arizona) - one ofthe leading scholars in the field.