 The Meno explores a mix of these solutions. Plato develops what he calls a hypothetical method (86c-100b). That is, the interlocutors in some sense begin from their beliefs (for example, “virtue is good”). But they do not endorse them. They set them up as hypotheses, and employ these hypotheses in investigation (on the relationship between Pyrrhonian skepticism and Plato’s and Aristotle’s notions of hypothesis, cf. Corti 2011). A spurious dialogue, the Sisyphus, discusses a similar puzzle, though with respect to deliberation. Deliberation either involves knowledge or is mere guesswork; either way, deliberation is impossible. Here, too, we may ask whether the distinction between knowing and not knowing is exhaustive, or whether attention to belief changes the picture (Fine 2021, ch. 8).