   (For the same diagnosis of Frede’s train of thought, see Fine 2000: 101.) The point is that no one reading Sextus’ text in the light of the philosophical usage of the terms he uses would think that assenting to the impression that P meant anything other than believing that P. Specifically, no one would think that it meant acknowledging or judging that one has the impression that P. So purely as a matter of philosophical usage, to talk of assenting to an impression that P, as Sextus does, requires us to understand that assent as the having of a belief that P. (Note that this is not a linguistic point about the Stoics’ use of the word dogma, since they don’t use that word in these contexts, but rather a philosophical point about what assenting to an impression must amount to for the Stoics.) If this is right, then philosophical philology alone rules out the reading that Burnyeat and Barnes and Perin and Fine want. (For a different view on the origins of Sextus’ language in PH I 13, but one which arrives at the same conclusion, see Barney 1992.)