Walter De La Mare said this quote

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)