Plato, Laws 834b

μετὰ ταῦτα ἵππων δὴ περὶ ἀγῶνος γίγνοιτο ἑξῆς ἂν νομοθετούμενα· ἵππων δὲ ἡμῖν χρεία μὲν οὔτε τις πολλῶν οὔτε πολλή, κατά γε δὴ Κρήτην, ὥστε ἀναγκαῖον καὶ τὰς σπουδὰς ἐλάττους γίγνεσθαι τάς τε ἐν τῇ τροφῇ καὶ τὰς περὶ ἀγωνίαν αὐτῶν. ἅρματος μὲν οὖν καὶ τὸ παράπαν οὔτε τις τροφεὺς ἡμῖν ἐστιν οὔτε τις φιλοτιμία πρὸς ταῦτα οὐδενὶ γίγνοιτʼ ἂν λόγον ἔχουσα, ὥστε τούτου μὲν ἀγωνιστάς, οὐκ ἐπιχώριον, ἔσται τιθέντας νοῦν μήτε ἔχειν μήτε δοκεῖν κεκτῆσθαι·

will be horse-racing. Here, in a country like Crete, there is not much need of horses—not in great numbers,—so that inevitably less attention is paid either to the rearing or the racing of horses. As to chariots, we have no one who keeps them, nor is anyone here likely to cherish any great ambition respecting them, so that to establish contests for them would run counter to native custom, and would not only seem, but be, a foolish act. If, however, we establish prizes for races of riding-horses—