" He had been thinking too of goodies and baddies. If you thought bad things – dreams of cruelty and lust – that didn’t make you bad. But if your head was full of civilised thoughts and you spent all day as a torturer … It came down to the fact that you were judged by your actions in society, not by the inside of your head. "

― Ian Rankin , The Black Book (Inspector Rebus, #5)