Plato, Laws 835b

κραθείσας καὶ ὀρχήσεσι, πολλάκις εἴρηται τῷ πρώτῳ νομοθέτῃ, καθʼ ἃ τοὺς δευτέρους δεῖ μεταδιώκοντας νομοθετεῖν, καὶ τοὺς ἀγῶνας πρεπόντως ἑκάστοις θύμασιν ἐν χρόνοις προσήκουσι νείμαντας, ἑορτὰς ἀποδοῦναι τῇ πόλει ἑορτάζειν. ταῦτα μὲν οὖν καὶ ἄλλα τοιαῦτα οὔτε χαλεπὸν γνῶναι τίνα τρόπον χρὴ τάξεως ἐννόμου λαγχάνειν, οὐδʼ αὖ μετατιθέμενα ἔνθα ἢ ἔνθα μέγα τῇ πόλει κέρδος ἢ ζημίαν ἂν φέροι·

has frequently been stated by the original lawgiver; the secondary lawgivers should follow him in their enactments, and they should arrange the contests at convenient times to suit the several sacrifices, and thus appoint festivals for the State to observe. Now as to these and the like matters, it is by no means hard to perceive how they should be given legal regulation, nor indeed would a shifting of their positions cause much