Diego E. Machuca

In his Pyrrhonian Outlines , Sextus Empiricus employs an argument based upon the possibility of disagreement in order to show that one should not assent to a Dogmatic claim to which at present one cannot oppose a rival claim. The use of this argument seems to be at variance with the Pyrrhonian stance, both because it does not seem to accord with the definition of Skepticism and because the argument appears to entail that the search for truth is doomed to failure. In the present paper, I examine the passages in which Sextus utilizes the argument from possible disagreement and offer an interpretation that makes the use of this argument compatible with the Pyrrhonian outlook

Disagreement is a pervasive feature of human life whose skeptical implications have been emphasized particularly by the ancient Pyrrhonists and by contemporary moral skeptics. Although the connection between disagreement and skepticism is also a focus of analysis in the emerging and burgeoning area of epistemology concerned with the significance of controversy, it has arguably not received the full attention it deserves. The present volume explores for the first time the possible skeptical consequences of disagreement in different areas and from different perspectives, with an emphasis in the current debate over the epistemic impact of disagreement. The thirteen new essays collected here examine the Pyrrhonian approach to disagreement and its relevance to the present epistemological discussions of the topic; the relationship between disagreement and moral realism and antirealism; disagreement-based skeptical arguments in contemporary epistemology; and disagreement and the possibility of philosophical knowledge and justified belief. Given the ever-growing interest in both the significance of disagreement and the challenge of skepticism, this volume makes a new contribution by conjugating two important trends in current philosophical research.

This paper argues for the following three claims. First, the Agrippan mode from disagreement does not play a secondary role in inducing suspension of judgment. Second, the Pyrrhonist is not committed to the criteria of justification underlying the Five Modes of Agrippa, which nonetheless does not prevent him from non-doxastically assenting to them. And third, some recent objections to Agrippan Pyrrhonism raised by analytic epistemologists and experimental philosophers fail to appreciate the Pyrrhonist's ad hominem style of argumentation and the real challenge posed by the mode from disagreement.

In recent years, there has been renewed interest in Pyrrhonism among both philosophers and historians of philosophy. This skeptical tradition is complex and multifaceted, since the Pyrrhonian arguments have been put into the service of different enterprises or been approached in relation to interests which are quite distinct. The diversity of conceptions and uses of Pyrrhonism accounts for the diversity of the challenges it is deemed to pose and of the attempts to meet them. The present volume brings together twelve essays by leading specialists which explore the history and philosophical significance of this form of skepticism: they discuss some thorny questions concerning ancient Pyrrhonism, explore its influence on certain modern thinkers, and examine it in relation to contemporary analytic philosophy. The essays combine historical and exegetical analysis with an assessment of the philosophical merits of the Pyrrhonian outlook, with the aim of understanding it both in its historical context and in connection with contemporary concerns. This volume, the first entirely devoted to a detailed study of the Pyrrhonian tradition, is intended to open up new exegetical and philosophical perspectives on Pyrrhonism and to motivate further examination of certain difficult issues. It will be a valuable resource for scholars of ancient philosophy, historians of modern philosophy, and epistemologists, as well as for graduate students interested in skepticism.

Several scholars familiar with Sextus Empiricus’s Pyrrhonism who have attentively read his Against the Ethicists have gotten the impression that something strange is going on in this book. For, at variance with the ‘official’ Pyrrhonian attitude of universal suspension of judgment, a number of passages of Against the Ethicists seem to ascribe to the Pyrrhonist both a type of negative dogmatism and a form of realism, which together amount to what may be called ‘moderate ethical realism’. The purpose of this paper is to determine whether Sextus does embrace such a position in Against the Ethicists.