Plato, Laws 652a

τὸ δὴ μετὰ τοῦτο, ὡς ἔοικε, σκεπτέον ἐκεῖνο περὶ αὐτῶν, πότερα τοῦτο μόνον ἀγαθὸν ἔχει, τὸ κατιδεῖν πῶς ἔχομεν τὰς φύσεις, ἢ καί τι μέγεθος ὠφελίας ἄξιον πολλῆς σπουδῆς ἔνεστʼ ἐν τῇ κατʼ ὀρθὸν χρείᾳ τῆς ἐν οἴνῳ συνουσίας. τί οὖν δὴ λέγομεν; ἔνεσθʼ, ὡς ὁ λόγος ἔοικεν βούλεσθαι σημαίνειν· ὅπῃ δὲ καὶ ὅπως, ἀκούωμεν προσέχοντες

In the next place, we probably ought to enquire, regarding this subject, whether the discerning of men’s natural dispositions is the only gain to be derived from the right use of wine-parties, or whether it entails benefits so great as to be worthy of serious consideration. What do we say about this? Our argument evidently tends to indicate that it does entail such benefits; so how and wherein it does so let us now hear,