Abstract: In this paper I discuss Sextus Empiricus' response to the dogmatists' objection that the skeptics cannot inquire into philosophical theories and at the same time suspend judgment about everything. I argue that his strategy consists in putting the burden of proof on the dogmatists: it is they, and not the skeptics, who must justify the claim to be able to inquire into the nature of things. Sextus' arguments purport to show that if we consider the dogmatists' inquiry, we should (...) conclude either that it is impossible or that it does not supply the skeptics with satisfactory starting-points for further inquiry. (shrink)