Note 140 — Chapter XXIX · SOPHISTES — POLITIKUS. (continued 2)

See a striking passage about the unchangeableness of Forms or Ideas in the Kratylus, p. 439 D-E; also Philêbus, p. 15.

In the Parmenidês (p. 132 D) the supposition τὰ εἴδη ἐστάναι ἐν τῇ φύσει is one of those set up by Sokrates and impugned by Parmenides. Nevertheless in an earlier passage of that dialogue Sokrates is made to include κίνησις and στάσις among the εἴδη (p. 129 E). It will be found, however, that when Parmenides comes to question Sokrates, What εἴδη do you recognise? attributes and subjects only (the latter with hesitation) are included: no such thing as actions, processes, events — τὸ ποιεῖν καὶ πάσχειν (p. 130). In Republic vii. 529 D, we find mention made of τὸ ὂν τάχος and ἡ οὖσα βραδύτης, which implies κίνησις as among the εἴδη. In Theætêt. pp. 152 D, 156 A, κίνησις is noted as the constituent and characteristic of Fieri — τὸ γιγνόμενον — which belongs to the domain of sensible perception, as distinguished from permanent and unchangeable Ens.