Plato, Laws 673d

φύσιν πηδᾶν εἰθίσθαι πᾶν ζῷον, τὸ δὲ ἀνθρώπινον, ὡς ἔφαμεν, αἴσθησιν λαβὸν τοῦ ῥυθμοῦ ἐγέννησέν τε ὄρχησιν καὶ ἔτεκεν, τοῦ δὲ μέλους ὑπομιμνῄσκοντος καὶ ἐγείροντος τὸν ῥυθμόν, κοινωθέντʼ ἀλλήλοις χορείαν καὶ παιδιὰν ἐτεκέτην. ἀληθέστατα. καὶ τὸ μέν, φαμέν, ἤδη διεληλύθαμεν αὐτοῦ, τὸ δὲ πειρασόμεθα ἐφεξῆς διελθεῖν. πάνυ μὲν οὖν. ἐπὶ τοίνυν τῇ τῆς μέθης χρείᾳ τὸν κολοφῶνα

is to be found in the habitual tendency of every living creature to leap; and the human creature, by acquiring, as we said, a sense of rhythm, generated and brought forth dancing; and since the rhythm is suggested and awakened by the tune, the union of these two brought forth choristry and play. Very true. Of choristry we have already discussed the one part, and we shall next endeavor to discuss the other part. By all means. But, if you both agree, let us first put the finishing stroke