here from _Tim._ 52 B, φαμεν αναγκαιον ειναι που το ‛ον ‛απαν εν τινι τοπω. For ancient theories about space the student must be referred to the histories of philosophy. A fair summary is given by Stob. _Phys._ περι κενου και τοπου και χωρας, ch. XVIII. 1. _Corpus et quasi qualitatem_: note that _corpus_ is _formed_, as contrasted with _materia_, _unformed_ matter. _Qualitas_ is here wrongly used for _quale_; it ought to be used of Force only, not of the product of Force and Matter, cf. 28. The Greeks themselves sometimes confuse ποιοτης and ποιον, the confusion is aided by the ambiguity of the phrase το ποιον in Greek, which may either denote the τοδε τι as ποιον, or the Force which makes it ποιον, hence Arist. calls one of his categories το ποιον and ποιοτης indifferently For the Stoic view of ποιοτης, see Zeller, 96--103, with footnotes. §25. _Bene facis_: _passim_ in comedy, whence Cic. takes it; cf. _D.F._ III. 16, a passage in other respects exceedingly like this. _Rhetoricam_: Hülsemann conj. _ethicam_, which however is _not_ Latin. The words have no philosophical significance here, but are simply specimens of words once foreign, now naturalised. _D.F._ III. 5 is very similar. Cic.'s words make it clear that these nouns ought to be treated as Latin first declension nouns; the MSS. often give, however, a Gk. accus. in _en_. _Non est vulgi verbum_: it first appears in _Theaet._ 182 A, where it is called αλλοκοτον ονομα. _Nova ... facienda_: = _imponenda_ in _D.F._ III. 5. _Suis utuntur_: so _D.F._ III. 4. _Transferenda_: _transferre_ = μεταφερειν, which is technically used as early as Isocrates. See Cic. on metaphor, _De Or._ III. 153 sq., where _necessitas_ is assigned as one cause of it (159) just as here; cf. also _De Or._ III. 149. _Saecula_: the spelling _secula_ is wrong; Corss. I. 325, 377. The diphthong bars the old derivations from _secare_, and _sequi_. _Quanto id magis_: Cic. is exceedingly fond of separating _tam quam ita tantus quantus_, etc., from the words with which they are syntactically connected, by just one small word, e.g. _Lael._ 53 _quam id recte_, _Acad._ II. 125 _tam sit mirabilis_, II. 68 _tam in praecipitem_; also _D.F._ III. 5 _quanto id nobis magis est concedendum qui ea nunc primum audemus attingere_.