Abstract

This is not a long book—but it is surprising that it is as long as it is. The Cyrenaics are one of a number of more or less shadowy philosophical schools which emerged in the Greek world in the 4th century BC and later. Well known are Plato’s Academy and Aristotle’s Lyceum; and relatively well served by the tradition are the Stoics and the Epicureans, as well as the various later varieties of sceptic; while the Cynics are remembered at least by reputation and anecdote. The Cyrenaics are altogether murkier. No text composed by a Cyrenaic philosopher of any period survives. Our knowledge of them rests on a handful of sources, almost all of them reports of doctrine rather than genuine fragments, none of them detailed, most of them late, generally from the works of commentators, at best neutral, at worst positively hostile, all with their own axes to grind. The best testimony consists of a mere three pages in Sextus Empiricus’s invaluable doxography of different accounts of the criterion of truth in adversus Mathemticos 7.