Note 20 — Chapter VIII · THE UNIVERSE.
Reading edition
μέρη δέ ἐστιν αὐτοῦ γῆ, ὕδωρ, ἀήρ, πῦρ, ἃ πάντα νεύει ἐπὶ τὸ μέσον Achilles Isag. 9 (Arnim ii 554). But according to another view only earth and water, being naturally heavy, tend towards the middle; whereas air and fire, being naturally light, tend from it; ib. 4 (Arnim ii 555). See § 196.