 Sextus’ philosophical writings are traditionally divided into two groups. The Outlines of Pyrrhonism [PH] consists of three books. PH 1 is the only general account of Pyrrhonism that survives. PH 2 and 3 discuss questions of logic, physics, and ethics. The other writings are summarily referred to, traditionally, as Against the Mathematicians [M]. In fact, they oppose not just mathematical, but also other theorists: the title really means Against the Theoreticians, or Against the Learned (Bett 2012). In a sense, only M 1–6 should go by that title. It is a complete work, and M 7 does not seem to be its continuation (Bett 2012, “Introduction”). M 1–6 discuss grammar, rhetoric, geometry, arithmetic, astrology, and music theory. They argue against theoretical ‘learning’ in these fields. M 7–11 discuss core questions of the three philosophical disciplines, logic, physics, and ethics, and could plausibly be referred to as Against the Logicians (M 7–8), Against the Physicists (M 9–10), and Against the Ethicists (M 11). Scholars disagree on whether M is earlier (Bett 1997) or later than PH (Janacek 1948 and 1972). Scholars also disagree on whether we can evaluate different strands of skepticism within Sextus as more or less sophisticated. Those who consider PH as later often do so because they think it shows greater philosophical sophistication, either by avoiding claims that a certain matter cannot be known (sometimes described as negative dogmatism), as found in M 1–6 and M 11, or by streamlining discussions from M 7–10 (Bett 1997; Brunschwig 1980).