We must make up our minds to it therefore that whatever measures we may be forced to take to prevent the recruiting sergeants of the Churches, free or established, from obtaining an exclusive right of entry to schools, we shall not be able to exclude religion from them. The most horrible of all religions: that which teaches us to regard ourselves as the helpless prey of a series of senseless accidents called Natural Selection, is allowed and even welcomed in so-called secular schools because it is, in a sense, the negation of all religion; but for school purposes a religion is a belief which affects conduct; and no belief affects conduct more radically and often so disastrously as the belief that the universe is a product of Natural Selection. What is more, the theory of Natural Selection cannot be kept out of schools, because many of the natural facts that present the most plausible appearance of design can be accounted for by Natural Selection; and it would be so absurd to keep a child in delusive ignorance of so potent a factor in evolution as to keep it in ignorance of radiation or capillary attraction. Even if you make a religion of Natural Selection, and teach the child to regard itself as the irresponsible prey of its circumstances and appetites (or its heredity as you will perhaps call them), you will none the less find that its appetites are stimulated by your encouragement and daunted by your discouragement; that one of its appetites is an appetite for perfection; that if you discourage this appetite and encourage the cruder acquisitive appetites the child will steal and lie and be a nuisance to you; and that if you encourage its appetite for perfection and teach it to attach a peculiar sacredness to it and place it before the other appetites, it will be a much nicer child and you will have a much easier job, at which point you will, in spite of your pseudoscientific jargon, find yourself back in the old-fashioned religious teaching as deep as Dr. Watts and in fact fathoms deeper.