Plato, Laws 747a

πρὸς πάντα εἶναι χρησίμους τὰς τῶν ἀριθμῶν διανομὰς καὶ ποικίλσεις, ὅσα τε αὐτοὶ ἐν ἑαυτοῖς ποικίλλονται καὶ ὅσα ἐν μήκεσι καὶ ἐν βάθεσι ποικίλματα, καὶ δὴ καὶ ἐν φθόγγοις καὶ κινήσεσι ταῖς τε κατὰ τὴν εὐθυπορίαν τῆς ἄνω καὶ κάτω φορᾶς καὶ τῆς κύκλῳ περιφορᾶς· πρὸς γὰρ ταῦτα πάντα δεῖ βλέψαντα τόν γε νομοθέτην προστάττειν τοῖς πολίταις πᾶσιν εἰς δύναμιν τούτων μὴ ἀπολείπεσθαι τῆς συντάξεως.

He must recognize it as a universal rule that the divisions and variations of numbers are applicable to all purposes—both to their own arithmetical variations and to the geometrical variations of surfaces and solids, and also to those of sounds, and of motions, whether in a straight line up and down or circular. The lawgiver must keep all these in view and charge all the citizens to hold fast, so far as they can,