"Now, if you adopt a strictly Darwinian, materialistic view, then the answer to this question is obvious: a healthy person is simply one who survives, because that is the whole point of natural selection. Thus, Stalin was more healthy than the 20 to 40 million people he murdered, just as Hitler was clearly more healthy than the 6 million Jews he slaughtered. Survival of the fittest is the final arbiter in nature. You may think that I am being a bit polemical, but this was the philosophy of one of the forerunners of postmodernity, Nietzsche, who believed that the whole idea of “God” was a pathological meme that simply protected the weak and infirm from the harsh judgment of nature."