He harms himself who does harm to another, and the evil plan is most harmful to the planner.
Authentication Score 2
Original Citation
Hesiod. Ἔργα καὶ Ἡμέραι [Works and Days]. c. 700 BC, l. 265.
Current Citation
Hesiod. "Works and Days." Theogony and Works and Days, translated by M. L. West. Oxford University Press, 2009, l. 265.