Plato, Laws 743a

ἄν. εἰ δʼ ἔστιν τοῦτο οὕτως ἔχον, οὐκ ἂν ἔγωγε αὐτοῖς ποτε συγχωροίην τὸν πλούσιον εὐδαίμονα τῇ ἀληθείᾳ γίγνεσθαι μὴ καὶ ἀγαθὸν ὄντα· ἀγαθὸν δὲ ὄντα διαφόρως καὶ πλούσιον εἶναι διαφερόντως ἀδύνατον. τί δή; φαίη τις ἂν ἴσως. ὅτι, φαῖμεν ἄν, ἥ τε ἐκ δικαίου καὶ ἀδίκου κτῆσις πλέον ἢ διπλασία ἐστὶν τῆς ἐκ τοῦ δικαίου μόνον, τά τε ἀναλώματα μήτε καλῶς μήτε αἰσχρῶς ἐθέλοντα ἀναλίσκεσθαι τῶν καλῶν καὶ εἰς καλὰ ἐθελόντων δαπανᾶσθαι διπλασίῳ

and these even a wicked man might possess. And since this is so, I would never concede to them that the rich man is really happy if he is not also good; while, if a man is superlatively good, it is impossible that he should be also superlatively rich. Why so? it may be asked. Because, we would reply, the gain derived from both right and wrong is more than double that from right alone, whereas the expenditure of those who refuse to spend either nobly or ignobIy is only one-half the expenditure of those who are noble and like spending on noble objects;