Sextus goes further, and poses the problem of induction as a general skeptical philosophical challenge: “For, when they [Stoic dogmatists] propose to establish the universal from particulars by means of induction, they will effect this by a review either of all or of some of the particular instances. But if they review some, the induction will be insecure, since some of the particulars omitted in the induction may contravene the universal; while if they are to review all, they will be toiling at the impossible, since the particulars are infinite and indefinite.”33
