na_ and _Diana_ as distinct.

Sec.90. _Illa falsa_: sc. _visa_, which governs the two genitives. Goer.
perversely insists on taking _somniantium recordatione ipsorum_ closely
together. _Non enim id quaeritur_: cf. 80 n. Sext. very often uses very
similar language, as in _P.H._ I. 22, qu. in n. on 40. _Tum cum
movebantur_: so Halm for MSS. _tum commovebantur_, the em. is supported by
88.

Sec.Sec.91--98. Summary: Dialectic cannot lead to stable knowledge, its
processes are not applicable to a large number of philosophical
questions (91). You value the art, but remember that it gave rise to
fallacies like the _sorites_, which you say is faulty (92). If it is
so, refute it. The plan of Chrysippus to refrain from answering, will
avail you nothing (93). If you refrain because you _cannot_ answer,
your knowledge fails you, if you _can_ answer and yet refrain, you are
unfair (94). The art you admire really undoes itself, as Penelope did
her web, witness the _Mentiens_, (95). You assent to arguments which
are identical in form with the _Mentiens_, and yet refuse to assent to
it Why so? (96) You demand that these sophisms should be made
exceptions to the rules of Dialectic. You must go to a tribune for that
exception. I just remind you that Epicurus would not allow the very
first postulate of your Dialectic (97). In my opinion, and I learned
Dialectic from Antiochus, the _Mentiens_ and the arguments identical
with it in form must stand or fall together (98).

Sec.91. _Inventam esse_: cf. 26, 27. _In geometriane_: with this inquiry into
the special function of Dialectic cf. the inquiry about Rhetoric in Plato
_Gorg._ 453 D, 454 C. _Sol quantus sit_: this of course is a problem for
[Greek: physike], not for [Greek: dialektike]. _Quod sit summum bonum_: not
[Greek: dialektike] but [Greek: ethike] must decide this. _Quae
coniunctio_: etc. so Sext. often opposes [Greek: symploke] or [Greek:
synemmenon] to [Greek: diezeugmenon], cf. esp _P.H._ II. 201, and Zeller
109 sq. with footnotes. An instance of a _coniunctio_ (hypothetical
judgment) is "_si lucet, lucet_" below, of a _disiunctio_ (disjunctive
judgment) "_aut vivet cras Hermarchus aut non vivet_". _Ambigue dictum_:
[Greek: amphibolon], on which see _P.H._ II. 256, Diog VII. 62. _Quid
sequatur_: [Greek: to akolouthon], cf. I. 19 n. _Quid repugnet_: cf. I. 19,
n. _De se ipsa_: the _ipsa_, according to Cic.'s usage, i