Plato, Meno 71e

ἀλλʼ οὐ χαλεπόν, ὦ Σώκρατες, εἰπεῖν. πρῶτον μέν, εἰ βούλει ἀνδρὸς ἀρετήν, ῥᾴδιον, ὅτι αὕτη ἐστὶν ἀνδρὸς ἀρετή, ἱκανὸν εἶναι τὰ τῆς πόλεως πράττειν, καὶ πράττοντα τοὺς μὲν φίλους εὖ ποιεῖν, τοὺς δʼ ἐχθροὺς κακῶς, καὶ αὐτὸν εὐλαβεῖσθαι μηδὲν τοιοῦτον παθεῖν. εἰ δὲ βούλει γυναικὸς ἀρετήν, οὐ χαλεπὸν διελθεῖν, ὅτι δεῖ αὐτὴν τὴν οἰκίαν εὖ οἰκεῖν, σῴζουσάν τε τὰ ἔνδον καὶ κατήκοον οὖσαν τοῦ ἀνδρός. καὶ ἄλλη ἐστὶν παιδὸς ἀρετή, καὶ θηλείας καὶ ἄρρενος, καὶ πρεσβυτέρου ἀνδρός, εἰ μὲν βούλει, ἐλευθέρου, εἰ δὲ βούλει,

Why, there is no difficulty, Socrates, in telling. First of all, if you take the virtue of a man, it is easily stated that a man’s virtue is this—that he be competent to manage the affairs of his city, and to manage them so as to benefit his friends and harm his enemies, and to take care to avoid suffering harm himself. Or take a woman’s virtue: there is no difficulty in describing it as the duty of ordering the house well, looking after the property indoors, and obeying her husband. And the child has another virtue—one for the female, and one for the male; and there is another for elderly men—one, if you like, for freemen,