It was a shock to people of the nineteenth century when they discovered from observations science had made that many features of the biological world could be ascribed to the elegant principle of natural selection.

It is a shock to us in the twentieth century to discover from observations science has made that the fundamental mechanisms of life cannot be ascribed to natural selection and therefore were designed. But we must deal with our shock as best we can and go on.

In the last fifty years science has advanced more than in the 2 000 previous years and given mankind greater powers over the forces of nature than the ancients ascribed to their gods.