Hesiod, Works and Days 270-2

νῦν δὴ ἐγὼ μήτ’ αὐτὸς ἐν ἀνθρώποισι δίκαιος εἴην μήτ’ ἐμὸς υἱός, ἐπεὶ κακὸν ἄνδρα δίκαιον ἔμμεναι, εἰ μείζω γε δίκην ἀδικώτερος ἕξει·

But now, may neither I myself be just among men, nor any son of mine, since it is a bane for a man to be just, if the more unjust man receives greater justice.