Plato, Laws 805a

καλοῦσιν, αἷς οὐχ ἵππων μόνον ἀλλὰ καὶ τόξων καὶ τῶν ἄλλων ὅπλων κοινωνία καὶ τοῖς ἀνδράσιν ἴση προστεταγμένη ἴσως ἀσκεῖται. λογισμὸν δὲ πρὸς τούτοις περὶ τούτων τοιόνδε τινὰ ἔχω· φημί, εἴπερ ταῦτα οὕτω συμβαίνειν ἐστὶν δυνατά, πάντων ἀνοητότατα τὰ νῦν ἐν τοῖς παρʼ ἡμῖν τόποις γίγνεσθαι τὸ μὴ πάσῃ ῥώμῃ πάντας ὁμοθυμαδὸν ἐπιτηδεύειν ἄνδρας γυναιξὶν ταὐτά. σχεδὸν γὰρ ὀλίγου πᾶσα ἡμίσεια πόλις ἀντὶ διπλασίας οὕτως ἔστιν τε καὶ γίγνεται ἐκ τῶν

as well as horses, and who practice it equally. In addition to this I allege the following argument. Since this state of things can exist, I affirm that the practice which at present prevails in our districts is a most irrational one—namely, that men and women should not all follow the same pursuits with one accord and with all their might. For thus from the same taxation and trouble there arises and exists half a State only instead of a whole one, in nearly every instance; yet surely this would be a surprising blunder