Plato, Laws 862c

πεσὸν ὑπό του πάλιν ἐξορθοῦντα, καὶ τὸ θανατωθὲν ἢ τρωθέν, ὑγιές, τὸ δὲ ἀποίνοις ἐξιλασθὲν τοῖς δρῶσι καὶ πάσχουσιν ἑκάστας τῶν βλάψεων, ἐκ διαφορᾶς εἰς φιλίαν πειρατέον ἀεὶ καθιστάναι τοῖς νόμοις. καλῶς ταῦτά γε. τὰς τοίνυν ἀδίκους αὖ βλάβας καὶ κέρδη δέ, ἐάν τις ἀδικῶν τινα κερδαίνειν ποιῇ, τούτων ὁπόσα μὲν ἰατά, ὡς οὐσῶν ἐν ψυχῇ νόσων, ἰᾶσθαι· τὸ δὲ τῆς ἰάσεως ἡμῖν τῆς ἀδικίας τῇδε ῥέπειν χρὴ φάναι. πῇ;

what is wounded or dead; and when the several injuries have been atoned for by compensation, he must endeavor always by means of the laws to convert the parties who have inflicted them and those who have suffered them from a state of discord to a state of amity. He will be right in doing that. As regards unjust injuries and gains, in case one man causes another to gain by acting unjustly towards him, all such cases as are curable we must cure, regarding them as diseases of the soul. And we should affirm that our cure for injustice lies in this direction— What direction?