§11. _Pro quaestore_: cf. 4. _Essem_: MSS. _issem_, whence Goer. conj. _Alexandriam issem_. _Heraclitus Tyrius_: scarcely known except from this passage. _Clitomachum_: for this philosopher see Zeller 532. _Quae nunc prope dimissa revocatur_: sc. _a Cicerone_. Philo's only notable pupils had combined to form the so called "Old Academy," and when Cic. wrote the _Academica_ the New Academic dialectic had been without a representative for many years. Cf. Introd. p. 21. _Libri duo_: cf. I. 13. _Heri_ for this indication of the contents of the lost _Catulus_, see Introd. p. 50. _Implorans_: "appealing to," the true meaning being "to appeal to with tears," see Corss. I. 361. _Philonis_: sc. _esse_. _Scriptum agnoscebat_: i.e. it was an actual work of Ph. _Tetrilius_: some MSS. are said to have Tetrinius, and the name _Tertinius_ is found on Inscr. One good MS. has _Tretilius_, which may be a mistake for _Tertilius_, a name formed like _Pompilius_, _Quintilius_, _Sextilius_. Qy, should _Petrilius_, a derivative from the word for four, be read? _Petrilius_ and _Pompilius_ would then agree like _Petronius_ and _Pomponius_, _Petreius_ and _Pompeius_. For the formation of these names see Corss. I. 116. _Rogus_: an ill omened and unknown name. _Rocus_, as Ursinus pointed out, occurs on _denarii_ of the _gens Creperia_. _De Philone ... ab eo ipso_: note the change of prep. "from Philo's lips," "from his copy." _De_ and _ex_ are common in Cic. after _audire_, while _ab_ is rather rarer. See _M.D.F._ I. 39, and for _describere ab aliquo_ cf. _a te_ in _Ad Att._ XIII. 22, 3.
§12. _Dicta Philoni_: for this see Introd. p. 50. It cannot mean what Goer. makes it mean, "_coram Philone_." I think it probable that _Philoni_ is a marginal explanation foisted on the text. As to the statements of Catulus the elder, they are made clear by 18. _Academicos_: i.e. _novos_, who are here treated as the true Academics, though Antiochus himself claimed the title. _Aristo_: see Introd. p. 11. _Aristone_: Diog. VII. 164 mentions an Aristo of Alexandria, a Peripatetic, who may be the same. Dio seems unknown. _Negat_: see n. on 18. _Lenior_: some MSS. _levior_, as is usual with these two words. In 11 one of the earliest editions has _leviter_ for _leniter_.