STRANGER: Yes, and the reason, as I should imagine, is that they are supposed to have knowledge of those things about which they dispute?
THEAETETUS: Certainly.
STRANGER: And they dispute about all things?
THEAETETUS: True.
STRANGER: And therefore, to their disciples, they appear to be all-wise?
THEAETETUS: Certainly.
STRANGER: But they are not; for that was shown to be impossible.
THEAETETUS: Impossible, of course.
STRANGER: Then the Sophist has been shown to have a sort of conjectural or apparent knowledge only of all things, which is not the truth?
THEAETETUS: Exactly; no better description of him could be given.