Plato, Laws 794c

δὲ ἀμφισβητοῦντα μὲν τῇ κολάσει πρὸς τοὺς ἀστυνόμους ἐπὶ δίκην ἄγουσα, ἀναμφισβήτητον δὲ ὄντα καὶ τὸν πολίτην αὐτὴ κολαζέτω. μετὰ δὲ τὸν ἑξέτη καὶ τὴν ἑξέτιν διακρινέσθω μὲν ἤδη τὸ γένος ἑκατέρων—κόροι μὲν μετὰ κόρων, παρθένοι δὲ ὡσαύτως μετʼ ἀλλήλων τὴν διατριβὴν ποιείσθωσαν—πρὸς δὲ τὰ μαθήματα τρέπεσθαι χρεὼν ἑκατέρους, τοὺς μὲν ἄρρενας ἐφʼ ἵππων διδασκάλους καὶ τόξων καὶ ἀκοντίων καὶ σφενδονήσεως, ἐὰν δέ πῃ συγχωρῶσιν, μέχρι

but in the case of citizens, if the person protests against the punishment, she shall bring him for trial before the city stewards; but if no protest is made, she shall inflict summary justice equally on citizens. After the age of six, each sex shall be kept separate, boys spending their time with boys, and likewise girls with girls; and when it is necessary for them to begin lessons, the boys must go to teachers of riding, archery, javelin-throwing and slinging, and the girls also, if they agree to it, must share in the lessons,