The Discourses of Epictetus Epictetus - The books did not have a formal title in ancient times. Although Simplicius called them Diatribai other writers gave them titles such as Dialexis , and Homiliai . The modern name comes from the titles given in the earliest medieval manuscript: "Arrian's Diatribai of Epictetus" . The Greek word Diatribai literally means "informal talks".As to the date, it is ...