Scientists' interest in religion seems to come in waves. One arrived after the publication of Darwin's Origin of Species in 1859. Another followed in the 1930s and 1940s, inspired by surprising revelations from quantum mechanics, which suggested the insufficiency of conventional physical theories of the universe. And now scientists are once again writing about religion, apparently provoked this time by the controversy surrounding intelligent design. . . . Richard Dawkins, the Charles Simonyi Professor of the Public Understanding of Science at Oxford University, has given us The God Delusion, an extended polemic against faith, which will be considered at length...