Terry Pratchett said this quote

You have the effrontery to be squeamish, it thought at him. But we were dragons. We were supposed to be cruel, cunning, heartless and terrible. But this much I can tell you, you ape – the great face pressed even closer, so that Wonse was staring into the pitiless depths of his eyes – we never burned and tortured and ripped one another apart and called it morality.