Plato, Laws 837b

ὀρθῶς. φιλία τοίνυν ἡ μὲν ἀπὸ ἐναντίων δεινὴ καὶ ἀγρία καὶ τὸ κοινὸν οὐ πολλάκις ἔχουσα ἐν ἡμῖν, ἡ δʼ ἐκ τῶν ὁμοίων ἥμερός τε καὶ κοινὴ διὰ βίου· μεικτὴ δὲ ἐκ τούτων γενομένη πρῶτον μὲν καταμαθεῖν οὐ ῥᾳδία, τί ποτε βούλοιτʼ ἂν αὑτῷ γενέσθαι τὸν τρίτον ἔρωτά τις ἔχων τοῦτον, ἔπειτα εἰς τοὐναντίον ὑπʼ ἀμφοῖν ἑλκόμενος ἀπορεῖ, τοῦ μὲν κελεύοντος τῆς ὥρας ἅπτεσθαι, τοῦ δὲ ἀπαγορεύοντος. ὁ μὲν

True. The friendship which occurs between opposites is terrible and fierce and seldom reciprocal amongst men, while that based on similarity is gentle and reciprocal throughout life. The kind which arises from a blend of these presents difficulties,—first, to discover what the man affected by this third kind of love really desires to obtain, and, in the next place, because the man himself is at a loss, being dragged in opposite directions by the two tendencies,—of which the one bids him to enjoy the bloom of his beloved, while the other forbids him. For he that is in love with the body