It can truly be said: Men are the devils of the earth, and the animals are the tormented souls. - Arthur Schopenhauer

No rose without a thorn. Yes, but many a thorn without a rose.

Der Mensch kann tun was er will; er kann aber nicht wollen was er will.

And to this world, to this scene of tormented and agonised beings, who only continue to exist by devouring each other, in which, therefore, every ravenous beast is the living grave of thousands of others, and its self-maintenance is a chain of painful deaths; and in which the capacity for feeling pain increases with knowledge, and therefore reaches its highest degree in man, a degree which is the higher the more intelligent the man is; to this world it has been sought to apply the system of optimism, and demonstrate to us that it is the best of all possible worlds. The absurdity is glaring.