1) "At PH i 29 we find/there is the same contrast between the way ataraxia was initially expected to be attained and the way it finally happened to be attained."

Which one sounds better?  hard to say between we find / there is

2) "I hope that the examination of PH and AD has shown that Sextus has no beliefs about the nature of ataraxia and tarache or their relationship to suspension of judgment and the holding of beliefs, but that he either argues dialectically or restricts himself to describing the way things have so far appeared to him. This is not to deny that, in passages where the argumentation is not dialectical, Sextus sometimes expresses himself in a dogmatic way; but this is neither strange nor difficult to explain."

3) "One might think, then, that in this latter passage (as in many others) Sextus is actually arguing dialectically, that is, using the Dogmatists’ own premises, and therefore not endorsing the conclusion drawn there."  (arguing..using...not endorsing.)

(offered tentatively)