…But nature does not say that cats are more valuable than mice; nature makes no remark on the subject. She does not even say that the cat is enviable or the mouse pitiable. We think the cat superior because we have (or most of us have) a particular philosophy to the effect that life is better than death. But if the mouse were a German pessimist mouse, he might not think that the cat had beaten him at all. He might think he had beaten the cat by getting to the grave first.