From Chapter IX., Leukippos of Miletos
There appear to be sufficient grounds for ascribing the theory of perception by means of simulacra or εἴδωλα which played such a part in the systems of Demokritos and Epicurus, to Leukippos.63 It is a natural development of the Empedoklean theory of "effluences" (§ 118). It hardly seems likely, however, that he went into detail on the subject, and it is safer to credit Demokritos with the elaboration of the theory.
58. Aet. iv. 9, 8, οἱ μὲν ἄλλοι φύσει τὰ αἰσθητά, Λεύκιππος δὲ Δημόκριτος καὶ Διογένης νόμῳ. See Zeller, Arch. v. p. 444
59. Chap. IV. p. 176. The remarkable parallel quoted by Gomperz (p. 321) from Galileo, to the effect that tastes, smells, and colours non sieno altro che puri nomi should, therefore, have been cited to illustrate Parmenides rather than Demokritos.
60. See p. 206, fr. 9.
61. For these see Sext. Math. vii. 135 (R. P. 204).
62. Sext. vii. 140, " "ὄψις γὰρ ἀδήλων τὰ φαινόμενα" ὥς φησιν Ἀναξαγόρας, ὃν ἐπὶ τούτῳ Δημόκριτος ἐπαινεῖ.
63. See Zeller, "Zu Leukippos" (Arch. xv. p. 138). The doctrine is attributed to him in Aet. iv. 13, 1 (Dox. p. 403); and Alexander, De sensu, pp. 24, 14 and 56, 10, also mentions his name in connexion with it. This must come from Theophrastos.
Created for Peithô's Web from Early Greek Philosophy by John Burnet, 3rd edition (1920). London: A & C Black Ltd. Burnet's footnotes have been converted to chapter endnotes. Greek unicode text entered with Peithô's Younicoder.
Web design by Larry Clark and RSBoyes (Agathon). Peithô's Web gratefully acknowledges the assistance of Anthony Beavers in the creation of this web edition of Burnet. Please send comments to: