Plato, Laws 776a

τῷ κλήρῳ τὴν ἑτέραν οἷον νεοττῶν ἐγγέννησιν καὶ τροφήν, χωρισθέντα ἀπὸ πατρὸς καὶ μητρὸς τὸν γάμον ἐκεῖ ποιεῖσθαι καὶ τὴν οἴκησιν καὶ τὴν τροφὴν αὑτοῦ καὶ τῶν τέκνων. ἐν γὰρ ταῖς φιλίαις ἐὰν μὲν πόθος ἐνῇ τις, κολλᾷ καὶ συνδεῖ πάντα ἤθη· κατακορὴς δὲ συνουσία καὶ οὐκ ἴσχουσα τὸν διὰ χρόνου πόθον ἀπορρεῖν ἀλλήλων ποιεῖ ὑπερβολαῖς πλησμονῆς. ὧν δὴ χάριν μητρὶ καὶ πατρὶ καὶ τοῖς τῆς γυναικὸς οἰκείοις παρέντας χρὴ τὰς αὑτῶν οἰκήσεις, οἷον

in his allotment, to be, as it were, the nest and home of his chicks, and make therein his marriage and the dwelling and home of himself and his children. For in friendships the presence of some degree of longing seems to cement various dispositions and bind them together; but unabated proximity, since it lacks the longing due to an interval, causes friends to fall away from one another owing to an excessive surfeit of each other’s company. Therefore the married pair must leave their own houses to their parents and the bride’s relations,