Sképsis: Revista de Filosofia ISSN 1981-4534 Vol. XI, N. 21, 2020, p. 188-209 SEXTUS EMPIRICUS ON ISOSTHENEIA AND EPOCHÊ: A DEVELOPMENTAL MODEL Roger E. Eichorn Chicago, IL, USA Email:
[email protected] Our problem with arguments in traditional epistemology is to get past their veneer of implausibility in order to get ourselves into a position to diagnose. We have to “intricate” ourselves before we extricate ourselves. Thompson Clarke, The Nature of Traditional Epistemology 1 The Nature of Isostheneia and Epochê: A Two-Sided Debate? In “The Modes in Sextus: Theory and Practice,” a paper written specially for his recent collection How to Be a Pyrrhonist (2019), Richard Bett focuses on Sextus Empiricus’s presentation and use of the Ten Modes of Aenesidemus and the Five Modes of Agrippa.1 The Modes are “standardized forms of argument designed to induce suspension of judgment” (108).2 Bett argues that both sets of modes are in tension with what I will refer to as ‘the Psychological Reading’ of Sextan isostheneia (equipollence) and epochê (suspension of judgment). In the contemporary secondary literature on Sextus, the Psychological Reading is presented as the standard interpretation in opposition to the revisionist ‘Rational Reading.’3 The difficulty of reconciling the Modes with the Psychological Reading is problematic for those who, like Bett, find the Rational Reading to be incompatible with Sextus’s undogmatic, non-doctrinal brand of skepticism.4 Bett describes the Psychological–Rational distinction this way: How are we to understand Sextus’ statement that the opposing arguments and impressions assembled by the skeptic have isostheneia, “equal 1 In Sextus’s Outlines of Pyrrhonism (PH), the Ten Modes are presented at PH 1.35–163 and the Five Modes at PH 1.164–77.