Abstract

Mi-Kyoung Lee has produced an engaging study of the development of skepticism in ancient Greece. Although arguments against the possibility of knowledge — and responses thereto — were common during the Hellenistic period, the great works of the Classical period hardly give skepticism a second thought. Were great minds like Plato and Aristotle blithely unaware of the threat posed by skepticism? Lee’s answer is that the questions and arguments of Hellenistic period skeptics were not unprecedented, for a nascent form of skepticism had already been debated in the Classical period. The relativism of Protagoras’ measure doctrine — “Man is the measure of all things” — was a challenge to Classical epistemologies, for it implied that no one could ever be mistaken about anything. Plato, Aristotle, and Democritus all recognized this challenge, and their responses to it shaped the debate over skepticism in the Hellenistic period.