Plato, Laws 770d

ποτὲ ἀνὴρ ἀγαθὸς γίγνοιτʼ ἄν, τὴν ἀνθρώπῳ προσήκουσαν ἀρετὴν τῆς ψυχῆς ἔχων ἔκ τινος ἐπιτηδεύματος ἤ τινος ἤθους ἢ ποιᾶς κτήσεως ἢ ἐπιθυμίας ἢ δόξης ἢ μαθημάτων ποτέ τινων, εἴτε ἄρρην τις τῶν συνοικούντων οὖσα ἡ φύσις εἴτε θήλεια, νέων ἢ γερόντων, ὅπως εἰς ταὐτὸν τοῦτο ὃ λέγομεν τεταμένη σπουδὴ πᾶσα ἔσται διὰ παντὸς τοῦ βίου, τῶν δʼ ἄλλων ὁπόσα ἐμπόδια τούτοις μηδὲν προτιμῶν φανεῖται

in which a member of our community—be he of the male or female sex, young or old,—may become a good citizen, possessed of the excellence of soul which belongs to man, whether derived from some pursuit or disposition, or from some form of diet, or from desire or opinion or mental study, to the attainment of this end all his efforts throughout the whole of his life shall be directed; and not a single person shall show himself preferring any object which impedes this aim;