Plato, Laws 663a

κρεῖττον ἀγαθόν τε καὶ καλὸν ὁ νόμος ἐνὸν ἐπαινεῖ. τί γὰρ δὴ δικαίῳ χωριζόμενον ἡδονῆς ἀγαθὸν ἂν γίγνοιτο; φέρε, κλέος τε καὶ ἔπαινος πρὸς ἀνθρώπων τε καὶ θεῶν ἆρʼ ἐστὶν ἀγαθὸν μὲν καὶ καλόν, ἀηδὲς δέ, δύσκλεια δὲ τἀναντία; ἥκιστα, ὦ φίλε νομοθέτα, φήσομεν. ἀλλὰ τὸ μήτε τινὰ ἀδικεῖν μήτε ὑπό τινος ἀδικεῖσθαι μῶν ἀηδὲς μέν, ἀγαθὸν δὲ ἢ καλόν, τὰ δʼ ἕτερα ἡδέα μέν, αἰσχρὰ δὲ καὶ κακά; καὶ πῶς; οὐκοῦν ὁ μὲν μὴ χωρίζων λόγος ἡδύ τε καὶ δίκαιον

For, apart from pleasure, what good could accrue to a just man? Come, tell me, is fair fame and praise from the mouths of men and gods a noble and good thing, but unpleasant, while ill-fame is the opposite? By no means, my dear lawgiver, we shall say. And is it unpleasant, but noble and good, neither to injure anyone nor be injured by anyone, while the opposite is pleasant, but ignoble and bad? By no means. So then the teaching which refuses to separate the pleasant from the just helps,