In the mirrors of the many judgments, my hands are the color of blood. I sometimes fancy myself an evil which exists to oppose other evils; and on that great Day of which the prophets speak but in which they do not truly believe, on the day the world is utterly cleansed of evil, then I too will go down into darkness, swallowing curses. Until then, I will not wash my hands nor let them hang useless.
"The Guns of Avalon". Book by Roger Zelazny, 1972.