Nature

John Stuart Mill

But even if it were true that every one of the elementary impulses of human nature has its good side, and may by a sufficient amount of artificial training be made more useful than hurtful; how little would this amount to, when it must in any case be admitted that without such training all of them, even those which are necessary to our preservation, would fill the world with misery, making human life an exaggerated likeness of the odious scene of violence and tyranny which is exhibited by the rest of the animal kingdom, except in so far as tamed and disciplined by man. There, indeed, those who flatter themselves with the notion of reading the purposes of the Creator in his works ought in consistency to have seen grounds for inferences from which they have shrunk. If there are any marks at all of special design in creation, one of the things most evidently designed is that a large proportion of all animals should pass their existence in tormenting and devouring other animals.

Fonte (última frase): Taylor, R. J. 1984. Predation. Londres, Chapman. Trecho de livro publicado em 1874.