Plato, Meno 78d

πάντα λέγω τὰ τοιαῦτα. εἶεν· χρυσίον δὲ δὴ καὶ ἀργύριον πορίζεσθαι ἀρετή ἐστιν, ὥς φησι Μένων ὁ τοῦ μεγάλου βασιλέως πατρικὸς ξένος. πότερον προστιθεῖς τούτῳ τῷ πόρῳ, ὦ Μένων, τὸ δικαίως καὶ ὁσίως, ἢ οὐδέν σοι διαφέρει, ἀλλὰ κἂν ἀδίκως τις αὐτὰ πορίζηται, ὁμοίως σὺ αὐτὰ ἀρετὴν καλεῖς; οὐ δήπου, ὦ Σώκρατες. ἀλλὰ κακίαν. πάντως δήπου. δεῖ ἄρα, ὡς ἔοικε, τούτῳ τῷ πόρῳ δικαιοσύνην ἢ σωφροσύνην ἢ

Very well: procuring gold and silver is virtue, according to Meno, the ancestral friend of the Great King. Tell me, do you add to such procuring, Meno, that it is to be done justly and piously, or is this indifferent to you, but even though a man procures these things unjustly, do you call them virtue all the same? Surely not, Socrates. Rather, vice. Yes, of course. Then it seems that justice or temperance or holiness or some other part of virtue must accompany the procuring of these things;