“It is very seldom that one encounters what would appear to be sheer unadulterated evil in a human face; an evil, I mean, active, deliberate, deadly, dangerous. Folly, heedlessness, vanity, pride, craft, meanness, stupidity - yes. But even Iagos in this world are few, and devilry is as rare as witchcraft. ("Bad Company")”

“Well, speaking as a feminist, I'm glad that women can lead--uh, groups of unspeakable magical evil.""Yes," Alan said gravely. "It'd be shoking if the evil magicians were sexist. For one thing, that would mean they were stupid, and having stupid enemies would be a terrible blow to my manly pride.”

“I do think there is evil. But it is very rare. It is as rare as true goodness. And just as true goodness produces rare saints, true evil produces rare monsters. The rest of us are semi-good, semi-bad, and we live our lives in a kind of half-happy, half-sad daze. We might hope that one sunny morning we find ourselves in the presence of a saint. And we must pray that we do not encounter the monster.”

“What makes Iago evil? Some people ask. I never ask.”

“Unfortunately, evil will never be wholly defeated.Mankind is faced with a continual struggle against evil. We believe that this is where the meaning of our lives and of human history lies.”

“What do you do when there is an evil you cannot defeat by just means? Do you stain your hands with evil to destroy evil? Or do you remain steadfastly just and righteous even if it means surrendering to evil?”