"The evil that is in the world almost always comes of ignorance, and good intentions may do as much harm as malevolence if they lack understanding."
"It may be comfortably asserted that no man chooses evil because it is evil; he only mistakes it for happiness, the good he seeks."
— Mary Wollstonecraft, A Vindication of the Rights of Men
"Any sufficiently advanced incompetence is indistinguishable from malice."
— Gray's Law
Bad guys think they're the heroes of their own stories; they're not sitting there thinking, "Yeah, I get to be evil today."
— Jeff Abbott
Ryuk: But if you did that [killing all evil people], it would make you the only bad person left.
Light: Huh? I have no idea what you're talking about, Ryuk. I'm a hardworking honor student who's considered to be one of Japan's best and brightest.