Plato, Laws 729d

πρὸς τὰς ἐν βίῳ ὁμιλίας εὐμενεῖς ἄν τις κτῷτο, μείζους μὲν καὶ σεμνοτέρας τὰς ἐκείνων ὑπηρεσίας εἰς αὑτὸν ἡγούμενος ἢ ʼκεῖνοι, ἐλάττους δʼ αὖ τὰς αὑτοῦ διανοούμενος εἰς τοὺς φίλους χάριτας αὐτῶν τῶν φίλων τε καὶ ἑταίρων. εἰς μὴν πόλιν καὶ πολίτας μακρῷ ἄριστος ὅστις πρὸ τοῦ Ὀλυμπίασιν καὶ ἁπάντων ἀγώνων πολεμικῶν τε καὶ εἰρηνικῶν νικᾶν δέξαιτʼ ἂν δόξῃ ὑπηρεσίας τῶν οἴκοι νόμων, ὡς

a man will find his friends and companions kindly disposed, in regard to life’s intercourse, if he sets higher than they do the value and importance of the services he receives from them, while counting the favors he confers on them as of less value than they are deemed by his companions and friends themselves. In relation to his State and fellow-citizens that man is by far the best who, in preference to a victory at Olympia or in any other contest of war or peace, would choose to have a victorious reputation for service to his native laws, as being the one man above all others who has served them with distinction throughout his life.