Plato, Laws 717d

διαφερόντως, διότι κούφων καὶ πτηνῶν λόγων βαρυτάτη ζημία—πᾶσι γὰρ ἐπίσκοπος τοῖς περὶ τὰ τοιαῦτα ἐτάχθη Δίκης Νέμεσις ἄγγελος—θυμουμένοις τε οὖν ὑπείκειν δεῖ καὶ ἀποπιμπλᾶσι τὸν θυμόν, ἐάντʼ ἐν λόγοις ἐάντʼ ἐν ἔργοις δρῶσιν τὸ τοιοῦτον, συγγιγνώσκοντα, ὡς εἰκότως μάλιστα πατὴρ ὑεῖ δοξάζων ἀδικεῖσθαι θυμοῖτʼ ἂν διαφερόντως. τελευτησάντων δὲ γονέων ταφὴ μὲν ἡ σωφρονεστάτη καλλίστη, μήτε ὑπεραίροντα τῶν εἰθισμένων ὄγκων μήτʼ ἐλλείποντα

seeing that for light and winged words there is a most heavy penalty,—for over all such matters Nemesis, messenger of Justice, is appointed to keep watch; wherefore the son must yield to his parents when they are wroth, and when they give rein to their wrath either by word or deed, he must pardon them, seeing that it is most natural for a father to be especially wroth when he deems that he is wronged by his own son. When parents die, the most modest funeral rites are the best, whereby the son neither exceeds the accustomed pomp, nor falls short of what his forefathers