§66. _Turpissimum_: cf. I. 45, _N.D._ I. 1. _Opiner_: _opinio_ or δοξα is judgment based on insufficient grounds. _Sed quaerimus de sapiente_: cf. 115, _T.D._ IV. 55, 59 also _De Or._ III. 75 _non quid ego sed quid orator_. _Magnus ... opinator_: Aug. _Contra Acad._ III. 31 qu. this passage wrongly as from the _Hortensius_. He imitates it, _ibid._ I. 15 _magnus definitor_. _Qua fidunt_, etc.: these lines are part of Cic.'s _Aratea_, and are quoted in _N.D._ II. 105, 106. _Phoenices_: the same fact is mentioned by Ovid, _Fasti_ III. 107, _Tristia_ IV. 3, 1. _Sed Helicen_: the best MSS. om. _ad_, which Orelli places before _Helicen_. _Elimatas_: the MSS. are divided between this and _limatas_. _Elimare_, though a very rare word occurs _Ad Att._ XVI. 7, 3. _Visis cedo_: cf. n. on 38. _Vim maximam_: so _summum munus_ is applied to the same course of action in _D.F._ III. 31. _Cogitatione_: "idea". _Temeritate_: cf. I. 42, _De Div._ I. 7, and the charge of προπετεια constantly brought against the dogmatists by Sext. _Praepostere_: in a disorderly fashion, taking the wrong thing first. §67. _Aliquando ... opinabitur_: this of course is only true if you grant the Academic doctrine, _nihil posse percipi_. _Secundum illud ... etiam opinari_: it seems at first sight as though _adsentiri_ and _opinari_ ought to change places in this passage, as Manut. proposes. The difficulty lies in the words _secundum illud_, which, it has been supposed, must refer back to the second premiss of Arcesilas' argument. But if the passage be translated thus, "Carneades sometimes granted _as a second premiss_ the following statement, that the wise man sometimes does opine" the difficulty vanishes. The argument of Carneades would then run thus, (1) _Si ulli rei_, etc. as above, (2) _adsentietur autem aliquando_, (3) _opinabitur igitur_. §68. _Adsentiri quicquam_: only with neuter pronouns like this could _adsentiri_ be followed by an accusative case. _Sustinenda est_: εφεκτεον. _Iis quae possunt_: these words MSS. om. _Tam in praecipiti_: for the position of _in_ cf. n. on I. 25. The best MSS. have here _tamen in_. Madv. altered _tamen_ to _tam_ in n. on _D.F._ V. 26. The two words are often confused, as in _T.D._ IV. 7, cf. also n. on I. 16. _Sin autem_, etc.: cf. the passage of Lactantius _De Falsa Sapientia_ III. 3, qu. by P. Valentia (p. 278 of Orelli's reprint) _si neque sciri quicquam potest, ut Socrates docuit, neque opinari, oportet, ut Zeno, tota philosophia sublata est_. _Nitamur ... percipi_: "let us struggle to prove the proposition, etc." The construction is, I believe, unexampled so that I suspect _hoc_, or some such word, to have fallen out between _igitur_ and _nihil_.