Regum et imperatorum apophthegmata

Plutarch

Plutarch. Moralia, Vol. III. Babbitt, Frank Cole, translator. Cambridge, MA: Harvard University Press; London: William Heinemann Ltd., 1931 (printing).

Zopyrus, by disfiguring himself with his own hands and cutting off his nose and ears, tricked the Babylonians, and by winning their confidence succeeded in handing over the city to Darius. Many a time Darius said that he would not take an hundred Babylons as the price of not having Zopyrus unscathed. [*](Herodotus, iii. 154-160; cf. Polyaenus, Strategemata, vii. 13.)