[186] Such at least seems to be the theory rather obscurely set forth in Diog., X., 32.
[187] Diog., X., 33, Sextus Emp., Adv. Math., VII., 211-16; Zeller, p. 391.
[188] For additional authorities see Zeller, pp. 385-95, and Wallace’s Epicureanism, chap. x.
[189] See Woltjer, Lucr. Ph., p. 141 ff.
[190] Morale d’Épicure, p. 157.
[191] In a fragment quoted by Sextus Empiricus, Adv. Math., IX., 54.
[192] Fragmenta Tragicorum, Didot, p. 140.
[193] Zeller, p. 416, note 1.
[194] See the whole concluding portion of Lucr., bk. V.
[195] Chiefly by Ritter, Gesch. d. Phil., IV., p. 94, on which see the clear and convincing reply of Zeller, op. cit., p. 47.