We learn from Diog. ix. 10 (quoted below, p. 164) that Herakleitos explained why the sun was warmer and brighter than the moon, and this is doubtless a fragment of that passage. I now think the words ἕνεκα τῶν ἄλλων ἄστρων are from Herakleitos. So Diels. Footnote 344: Hesiod said Day was the child of Night (_Theog._ 124). Footnote 345: Reading ὅκωσπερ πῦρ for ὅκωσπερ with Diels. Footnote 346: _Il._ xviii. 107. I add the words οἰχήσεσθαι γὰρ πάντα from Simpl. _in Cat._ (88 b 30 schol. Br.). They seem to me at least to represent something that was in the original. Footnote 347: I cannot think it likely that Herakleitos said both παλίντονος and παλίντροπος ἁρμονίη, and I prefer Plutarch’s παλίντονος (R. P. 34 b) to the παλίντροπος of Hippolytos. Diels thinks that the polemic of Parmenides decides the question in favour of παλίντροπος; but see below, p. 184, _n._ 415, and Chap. IV. p. 198, _n._ 438. Footnote 348: This, I now think, is the medical rule αἱ ἰατρεῖαι διὰ τῶν ἐναντίων, _e.g._ βοηθεῖν τῷ θερμῷ ἐπὶ τὸ ψυχρόν (Stewart on Arist. _Eth._ 1104 b 16). Footnote 349: Fr. 51_a_ was recovered by Bywater from Albertus Magnus. See _Journ. Phil._ ix. p. 230. Footnote 350: On fr. 55 see Diels in _Berl. Sitzb._ 1901, p. 188. Footnote 351: I now read ἐπαιτέονται with Bernays and Diels. Footnote 352: On fr. 59 see Diels in _Berl. Sitzb._ 1901, p. 188. The reading συνάψιες seems to be well attested and gives an excellent sense. It is not, however, correct to say that the optative could not be used in an imperative sense. Footnote 353: By “these things,” he probably meant all kinds of injustice. Footnote 354: Diels supposes that fr. 64 went on ὁκόσα δὲ τεθνηκότες ζωή. “Life, Sleep, Death is the threefold ladder in psychology, as in physics Fire, Water, Earth.” Footnote 355: I think now with Diels that the words οὕτω βαθὺν λόγον ἔχει are probably genuine. They present no difficulty if we remember that λόγος means “measurement,” as in fr. 23. Footnote 356: