From Chapter V., Empedokles of Akragas
102. Relation to Predecessors
Some writers hold that certain parts of the system of
Empedokles, in particular the theory of pores and effluvia (§
118), were due to the influence of Leukippos.24
We know, however, that Alkmaion (§ 96) spoke of "pores" in connexion
with sensation, and it was more probably from him that
Empedokles got the theory. Moreover, this is more in
accordance with the history of certain other physiological
views which are common to Alkmaion and the later Ionian
philosophers. We can generally see that those reached Ionia
through the medical school which Empedokles founded.25
23. Diog. viii. 54-56 (R. P. 162).
24. Diels, Verhandl. d. 35 Philologenversamml. pp. 104 sqq., Zeller, p. 767. It would be fatal to the main thesis of the next few chapters if it could be proved that Empedokles was influenced by Leukippos. I hope to show that Leukippos was influenced by the later Pythagorean doctrine (Chap. IX. § 171), which was in turn affected by Empedokles (Chap. VII. §147).
25. For πόροι in Alkmaion, cf. Arist. De gen. an. B, 6. 744 a 8; Theophr. De sens. 26; and for the way in which his embryological and other views were transmitted through Empedokles to the Ionian physicists, cf. Fredrich, Hippokratische Untersuchungen, pp. 126 sqq.
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