Against the Grammarians (Adversos Mathematicos I), and: Contro gli astrologi (review)

No historian of philosophy should be retailing the old canards that the Hellenistic philosopher Sextus Empiricus was silly, wholly confused, or merely a compiler and not a philosopher in his own right. These translations and commentaries, along with the recent work of Richard Bett, James Hankinson, and others, should bury those notions forever.

Against the Grammarians is the first and Against the Astrologers is the fifth volume of Sextus's six-volume Against the Teachers of the technai or professional arts and sciences (grammar, rhetoric, geometry, arithmetic, astrology, and music). Sextus is not against all forms of the study of these matters; in fact, one of the skeptic's "rules for living" is that he will engage in an art (techne) to make a living (Outlines of Pyrrhonism, I.24). But he is against the claims of each of them to special technical expertise. He prefers the unpretentious experience of everyday life—living by the phenomena; non-expert, practical forms of grammar, astronomy, music—to fancy theories about the nature of things.

Against the Grammarians is Sextus's critique of the interpreters of poetry and prose—today's English professors and historians. Philosophers will be amused by his deconstruction of various sorts of lit crit arrogance and rashness that are still with us. Regrettably, some of us are not immune from the same critiques.

Against the Astrologers is Sextus's critique of the Chaldean soothsayers. He is not against the observation of celestial phenomena for agricultural or navigational purposes. His critiques of the astrologers for lack of empirical evidence and promotion of superstition make him sound like a proto-scientist.

One originality of Sextus's work was his combination of a dogmatic Epicurean critique of the grammatologists and astrologers with a skeptical aporetic critique. Precisely because he does not hesitate to make use of the arguments of others, some interpreters have decided that Sextus was unoriginal and derivative. But Blank and Spinelli both show that he recombines these arguments in ways that no one else had done. That is one of the ways of being original in philosophy. The upshot is that he is our earliest source of quite a number of critiques of grammarians and astrologers.

The use of dogmatic arguments raises the problem of whether Sextus engages in so-called "negative dogmatism" in these volumes. Right at the beginning of Against the Astrologers, Sextus accuses them of violating "right reason." What right does a skeptic have to invoke such a standard? Some have felt that at this stage Sextus was a dogmatic skeptic, invoking one set of truths to tear down another. But that is not necessary. Blank and Spinelli explain this well with a combination of points. One, we can see the dogmatic and Epicurean attacks as clearing the ground for the following skeptical equipollence of arguments. Two, we can follow Jonathan Barnes in assuming that each claim that something has been demolished assumes the counterargument that it has been proven, so that the implied upshot is equipollence. Three, "right reason" can be the sort of unpretentious practical reasoning and living in accord with the appearances that the skeptics often claimed to live by.

Spinelli and Blank provide many useful improvements over the previous English translations of these texts by Bury and the Italian translations by Russo. Blank rightly relies on Spinelli's 1995 translation and commentary on Sextus's Against the Ethicists and Spinelli rightly relies on Blank for a number of points. Spinelli supplies the Greek on facing pages of the translation; Blank does not. Spinelli also supplies five Greek zodiac charts and a beautiful print of a fifteenth-century zodiac.

Neither Blank nor Spinelli unduly lionizes Sextus. They admit that...