Abstract
Aristippus of Cyrene was one of Socrates’ associates; he appears in Xenophon’s Memorabilia, where in 2.1.1 Socrates is said to have thought him “quite undisciplined” in matters of food, drink, and sex. Whether he himself was a philosophical hedonist or not is open to discussion; at any rate, the Cyrenaics who succeeded him are supposed to have accepted a variety of hedonism. But they are also supposed to have accepted something that looks like skepticism: we can have knowledge only of our own affects, not of what occasioned them, and it is with this that the present book is primarily concerned.