Hi Sextus,
I forget what I said, but I hope it was something like this. Generally speaking, a comma represents a pause, for breath. The pause in speaking, and the comma in writing, should be timed to help clarify meaning by giving some separation to thoughts and ideas, where such separation is warranted. The trend is to use fewer commas, and shorter sentences, than in the past. Compare Dickens.
With that in mind, here are a few comments.
Clive
. . . whether I should use commas in the following examples:
1) "My second purpose is to determine whether the Pyrrhonist’s quest for, and attainment of, ataraxia and his philanthropia are, as has been generally thought, essential aspects of his stance." OK
2) "There is another crucial text, probably the most important, that should remove all appearance of dogmatism from the exposition of the Skeptic’s quest for, and attainment of, ataraxia made in PH i and iii." I don't really feel that the cooaaas are needed here, although they are not wrong. I do wonder about the phrase made in PH i and iii. What does it qualify? I wonder if it should be preceded by a comma?
3) "The purpose of this section is to determine whether the quest for, and the attainment of, ataraxia in matters of belief should be deemed essential to Pyrrhonism."
In this case, I'm referring to the quest for ataraxia and the attainment of ataraxia as two different things; and I'm gonna emphasize this point in the section in question. OK
4) "It seems to follow from this that both the quest for, and the attainment of, ataraxia are essential to the Pyrrhonean philosophy." Again, I wonder if commas are needed?
5) "The second text is found at AM i 6, where, as was noted before, there is no mention of the Skeptic’s quest for, and attainment of, unperturbedness in the story of his philosophical journey." The commas aren't wrong, but. You might omit the one after 6, and those before and after 'and attainment of'.
6) "Certainly PH i 232–233 cannot be taken as conclusive evidence that the quest for, and the attainment of, ataraxia are not essential to Pyrrhonism." OK, given your comment in 3 above.
7) "I find this omission at the very least suggestive, since if the search for, or the attainment of, ataraxia were inherent in Pyrrhonism, one would certainly expect Sextus to mention them in the present passage".OK
8) "I shall begin by analyzing Sextus Empiricus’ exposition of the Skeptic’s search for, and attainment of, unperturbedness with the object of showing that he is consistently Pyrrhonean". Again, you could omit them from the 'attainmnet phrase'. I'd consider putting one before 'with the object of'.
9) "In what follows I shall attempt to show that Sextus does not regard the search for, and the attainment of, ataraxia in matters of belief as essential to his Skepticism." I'd put one I'd consider putting one before 'with the object of'..
10) "Even if at times the tone and the terminology employed by Sextus seem to point to the contrary, the Skeptic’s search for, and attainment of, ataraxia and his philanthropic therapy do not commit him to any belief." OK