Plato, Laws 894a

μὴ μενούσης δὲ αὐτῆς, διʼ ἀμφότερα ἀπόλλυται. γίγνεται δὴ πάντων γένεσις, ἡνίκʼ ἂν τί πάθος ᾖ; δῆλον ὡς ὁπόταν ἀρχὴ λαβοῦσα αὔξην εἰς τὴν δευτέραν ἔλθῃ μετάβασιν καὶ ἀπὸ ταύτης εἰς τὴν πλησίον, καὶ μέχρι τριῶν ἐλθοῦσα αἴσθησιν σχῇ τοῖς αἰσθανομένοις. μεταβάλλον μὲν οὖν οὕτω καὶ μετακινούμενον γίγνεται πᾶν· ἔστιν δὲ ὄντως ὄν, ὁπόταν μένῃ, μεταβαλὸν δὲ εἰς ἄλλην ἕξιν διέφθαρται παντελῶς. ἆρʼ οὖν κινήσεις πάσας εἰρήκαμεν ὡς ἐν εἴδεσιν

in everything to bring about generation? Obviously whenever a starting-principle receiving increase comes to the second change, and from this to the next, and on coming to the third admits of perception by percipients. Everything comes into being by this process of change and alteration; and a thing is really existent whenever it remains fixed, but when it changes into another constitution it is utterly destroyed. Have we now, my friends, mentioned all the forms of motion, capable of numerical classification,