Nero Bron

“The creatures outside looked from pig to man, and from man to pig, and from pig to man again; but already it was impossible to say which was which.”
― George Orwell, Animal Farm

“Man has no moral instinct. He is not born with moral sense. You were not born with it, I was not - and a puppy has none. We acquire moral sense, when we do, through training, experience, and hard sweat of the mind.”
― Robert A. Heinlein, Starship Troopers

“There is no such thing as pure good or pure evil, least of all in people. In the best of us there are thoughts or deeds that are wicked, and in the worst of us, at least some virtue. An adversary is not one who does loathsome acts for their own sake. He always has a reason that to him is justification. My cat eats mice. Does that make him bad? I don't think so, and the cat doesn't think so, but I would bet the mice have a different opinion.”
― Terry Goodkind, Wizard's First Rule

“Several of them would have protested if they could have found the right arguments.”
― George Orwell, Animal Farm