 Beyond the fact that these are Timon’s own ideas, the amount that we can learn from Sextus’ reports is less than one might have hoped. On the subject of hypothesis, he simply tells us that Timon regarded it as a question of primary importance whether anything should be assumed by hypothesis. The practice of assuming things by hypothesis appears to have had its original home in geometry, and it is not surprising that the remark is cited at the beginning of Sextus’ Against the Geometers. But the occurrence of the remark in a work called Against the Physicists may suggest that Timon had in mind a notion of unargued assumption that was not restricted to any particular subject-matter. In any case, it is a fair conjecture that Timon’s implied answer to the question was ‘no’; accepting things by hypothesis is equivalent to accepting them without grounds, and this is a highly dubious procedure. If so, Timon anticipates the Mode from Hypothesis, which is one of the Five Modes of the later Pyrrhonists (and where the notion of hypothesis has lost its specific link with geometry).