Abstract

I distinguish two varieties of ancient skepticism on the basis of their competing attitudes towards reason. Pyrrhonian skeptics, according to Sextus Empiricus, not only doubt our ability to arrive at true beliefs, but also the value of doing so, whereas the Academics, as portrayed by Cicero, are committed to the view that true beliefs are as beneficial as they are difficult to acquire. Next, I examine Academic epistemology, focusing on one of Cicero's most important and problematic philosophical coinages---probabilitas . He offers this term as the Academic's fallible criterion of judgment and as an alternative to the Stoic criterion which even more problematically guarantees certainty. The Academic, following Plato's Socrates, subjects his beliefs to close scrutiny in order to see whether they can survive refutation. By seeking out these 'dialectical survivors' the Academic seeks to eliminate the false beliefs from the set of beliefs that seem probabile. ;After discussing Academic epistemology, I examine some ethical implications of this view. The Stoics claim that no amount of non-moral goods can add to the eudaimonia of the sage, for he is in possession of the only genuine good, virtue. And virtue, for the Stoics is the healthy state of the psyche which results from deep, systematic knowledge. Here again, Cicero offers an Academic alternative. He maintains the Stoic's naturalistic ethical formula that a virtuous life is one lived in accordance with nature, but his interpretation reflects his epistemic modesty. To live in accordance with nature turns out to mean 'insofar as it is morally intelligible'. ;Finally, I argue for the plausibility of Cicero's claim to practice a method which originates with Socrates and after its revival in the third century BCE continuosly flourished to his own age . I conclude that Cicero's account of the Academy is both historically plausible and philosophically interesting; and thus Cicero should be taken seriously as a philosopher in his. own right and not merely as a doxographer