Plato, Laws 733a

σχήματι κρατεῖ πρὸς εὐδοξίαν, ἀλλὰ καὶ ὡς, ἄν τις ἐθέλῃ γεύεσθαι καὶ μὴ νέος ὢν φυγὰς ἀπʼ αὐτοῦ γένηται, κρατεῖ καὶ τούτῳ ὃ πάντες ζητοῦμεν, τῷ χαίρειν πλείω, ἐλάττω δὲ λυπεῖσθαι παρὰ τὸν βίον ἅπαντα. ὡς δὲ ἔσται τοῦτο σαφές, ἂν γεύηταί τις ὀρθῶς, ἑτοίμως καὶ σφόδρα φανήσεται. ἡ δὲ ὀρθότης τίς; τοῦτο ἤδη παρὰ τοῦ λόγου χρὴ λαμβάνοντα σκοπεῖν· εἴτε οὕτως ἡμῖν κατὰ φύσιν πέφυκεν εἴτε ἄλλως παρὰ φύσιν, βίον χρὴ παρὰ βίον ἡδίω καὶ λυπηρότερον ὧδε σκοπεῖν. ἡδονὴν βουλόμεθα ἡμῖν εἶναι,

but also because, if a man consents to taste it and not shun it in his youth, it is superior likewise in that which all men covet,—an excess, namely, of joy and a deficiency of pain throughout the whole of life. That this will clearly be the result, if a man tastes of it rightly, will at once be fully evident. But wherein does this rightness consist? That is the question which we must now, under the instruction of our Argument, consider; comparing the more pleasant life with the more painful, we must in this wise consider whether this mode is natural to us, and that other mode unnatural. We desire that pleasure should be ours,