[Footnote 49: Plato, Euthydem. p. 300 C. [Greek: A)ll' ou) tou=to e)rôtô=, a)lla\ ta\ pa/nta siga=| ê)\ le/gei? _Ou)de/tera kai\ a)mpho/tera_, e)/phê u(pharpa/sas o( Dionuso/dôros; eu)= ga\r oi)=da o(/ti tê=| a)pokri/sei ou)ch e(/xeis o(/, ti chrê=|.]] [Footnote 50: Plato, Sophist. p. 259 B. [Greek: ei)/te ô(s ti chalepo\n katanenoêkô\s chai/rei, tote\ me\n e)pi\ tha/tera tote\ d' e)pi\ tha/tera tou\s lo/gous e(/lkôn, ou)k a)/xia pollê=s spoudê=s e)spou/daken, ô(s oi( nu=n lo/goi phasi/n.]--Also p. 259 D. [Greek: To\ de\ tau)to\n e(/teron a)pophai/nein a(mê=| ge/ pê|, kai\ to\ tha/teron tau)to/n, kai\ to\ me/ga smikro/n, kai\ to\ o(/moion a)no/moion, kai\ chai/rein ou(/tô ta)nanti/a a)ei\ prophe/ronta e)n toi=s lo/gois, ou)/ te/ tis e)/legchos ou(=tos a)lêthino/s, a)/rti te tô=n o)/ntôn tino\s e)phaptome/nou dê=los neogenê\s ô)/n.]] [Footnote 51: Proklus, ad Platon. Parmen. p. 953, ed. Stallb.; compare p. 976 in the last book of the commentary, probably composed by Damaskius. K. F. Hermann, Geschichte und System der Platon. Philos. p. 507.] [Footnote 52: This commentary is annexed to Stallbaum's edition of the Parmenides. Compare also the opinion of Marinus (disciple and biographer of Proklus) about the Parmenidês--Suidas v. [Greek: Mari=nos]. Jamblichus declared that Plato's entire theory of philosophy was embodied in the two dialogues, Parmenides and Timæus: in the Parmenides, all the intelligible or universal Entia were deduced from [Greek: to\ e(/n]: in the Timæus, all cosmical realities were deduced from the Demiurgus. Proklus ad Timæeum, p. 5 A, p. 10 Schneider. Alkinous, in his Introduction to the Platonic Dialogues (c. 6, p. 159, in the Appendix Platonica attached to K. F. Hermann's edition of Plato) quotes several examples of syllogistic reasoning from the Parmenides, and affirms that the ten categories of Aristotle are exhibited therein. Plotinus (Ennead. v. 1, 8) gives a brief summary of what he understood to be contained in the Antinomies of the Platonic Parmenides; but the interpretation departs widely from the original.