International audienceThe aim of this paper is to determine how a Pyrrhonian (as she/he is described by Sextus Empiricus) considers the Law and can respond to Aristocles’ objection that a Pyrrhonian is unable to obey laws. First (1), we analyze the function of the Law in the 10th Mode of Aenesidemus, in order to show laws as a dogmatic source of value. But (2) Sextus shows also that the Sceptic can live in a human society by following laws and customs, according to so-called ‘sceptical conformism’. In the light of Pyrrhonian Hypotyposes (Pyr.) 1.23–24 and Against the Mathematicians (Math.) 11.162–164, I discuss the validity of the label ‘conformism’ in order to understand the nature of the political effect of the suspension of judgement. (3...