John T. Fitzgerald 
Passions and Moral Progress in Greco-Roman Thought [PDF ebook] 

This book contains a collection of 13 essays from leading scholars on the relationship between passionate emotions and moral advancement in Greek and Roman thought. Recognising that emotions played a key role in whether individuals lived happily, ancient philosophers extensively discussed the nature of "the passions", showing how those who managed their emotions properly would lead better, more moral lives. The contributions are preceded by an introdution to the subject by John Fitzgerald. Writers discussed include the Cynics, the Neopythagorians, Aristotle and Ovid; the discussion encompasses philosophy, literature and religion.