[582]. Arist. Phys. Δ, 6, 213 a 22 (R. P. 159). Aristotle only mentions Anaxagoras by name in this passage; but he speaks in the plural, and we know from fr. [100] that the klepsydra experiment was used by Empedokles.
[583]. In antiquity the Homeric Allegorists made Hera Earth and Aidoneus Air, a view which has found its way into Aetios from Poseidonios. It arose as follows. The Homeric Allegorists were not interested in the science of Empedokles, and did not see that his αἰθήρ was quite a different thing from Homer’s ἀήρ. Now this is the dark element, and night is a form of it, so it would naturally be identified with Aidoneus. Again, Empedokles calls Hera φερέσβιος, and that is an old epithet of Earth in Homer. Another view current in antiquity identified Hera with Air, which is the theory of Plato’s Cratylus, and Aidoneus with Earth. The Homeric Allegorists further identified Zeus with Fire, a view to which they were doubtless led by the use of the word αἰθήρ. Now αἰθήρ certainly means Fire in Anaxagoras, as we shall see, but there is no doubt that in Empedokles it meant Air. It seems likely, then, that Knatz is right (“Empedoclea” in Schedae Philologicae Hermanno Usenero oblatae, 1891, pp. 1 sqq.) in holding that the bright Air of Empedokles was Zeus. This leaves Aidoneus to stand for Fire; and nothing could have been more natural for a Sicilian poet, with the volcanoes and hot springs of his native island in mind, than this identification. He refers to the fires that burn beneath the Earth himself (fr. [52]). If that is so, we shall have to agree with the Homeric Allegorists that Hera is Earth; and there is certainly no improbability in that.
[584]. Arist. de Gen. Corr. Β, 1. 329 b 1.
[585]. Ibid. Β, 6. 333 a 16.
[586]. Ibid. Α, 8. 325 b 19 (R. P. 164 e). This was so completely misunderstood by later writers that they actually attribute to Empedokles the doctrine of στοιχεῖα πρὸ τῶν στοιχείων (Aet. 1. 13, 1; 17, 3). The criticism of the Pythagoreans and Plato had made the hypothesis of elements almost unintelligible to Aristotle, and a fortiori to his successors. As Plato put it (Tim. 48 b 8), they were “not even syllables,” let alone “letters” (στοιχεῖα). That is why Aristotle, who derived them from something more primary, calls them τὰ καλούμενα στοιχεῖα (Diels, Elementum, p. 25).
[587]. We know from Menon that Philistion put the matter in this way. See p. 235, [n. 527].
[588]. Arist. Met. Α, 4. 985 a 31; de Gen. Corr. Β, 3. 330 b 19 (R. P. 164 e).
[589]. Cf. Introd. § VIII.
[590]. Arist. Met. Α, 10. 1075 b 3.