The reason was, I think, that Circumstantial Selection is easier to understand, more visible and concrete, than Lamarckian evolution. Evolution as a philosophy and physiology of the will is a mystical process, which can be apprehended only by a trained, apt, and comprehensive thinker. Though the phenomena of use and disuse, of wanting and trying, of the manufacture of weight lifters and wrestlers from men of ordinary strength, are familiar enough as facts, they are extremely puzzling as subjects of thought, and lead you into metaphysics the moment you try to account for them. But pigeon fanciers, dog fanciers, gardeners, stock breeders, or stud grooms, can understand Circumstantial Selection, because it is their business to produce transformation by imposing on flowers and animals a Selection From Without. All that Darwin had to say to them was that the mere chapter of accidents is always doing on a huge scale what they themselves are doing on a very small scale. There is hardly a laborer attached to an English country house who has not taken a litter of kittens or puppies to the bucket, and drowned all of them except the one he thinks the most promising. Such a man has nothing to learn about the survival of the fittest except that it acts in more ways than he has yet noticed; for he knows quite well, as you will find if you are not too proud to talk to him, that this sort of selection occurs naturally (in Darwin's sense) too: that, for instance, a hard winter will kill off a weakly child as the bucket kills off a weakly puppy. Then there is the farm laborer. Shakespear's Touchstone, a court-bred fool, was shocked to find in the shepherd a natural philosopher, and opined that he would be damned for the part he took in the sexual selection of sheep. As to the production of new species by the selection of variations, that is no news to your gardener. Now if you are familiar with these three processes: the survival of the fittest, sexual selection, and variation leading to new kinds, there is nothing to puzzle you in Darwinism.
That was the secret of Darwin's popularity. He never puzzled anybody. If very few of us have read The Origin of Species from end to end, it is not because it overtaxes our mind, but because we take in the whole case and are prepared to accept it long before we have come to the end of the innumerable instances and illustrations of which the book mainly consists. Darwin becomes tedious in the manner of a man who insists on continuing to prove his innocence after he has been acquitted. You assure him that there is not a stain on his character, and beg him to leave the court; but he will not be content with enough evidence: he will have you listen to all the evidence that exists in the world. Darwin's industry was enormous. His patience, his perseverance, his conscientiousness reached the human limit. But he never got deeper beneath or higher above his facts than an ordinary man could follow him. He was not conscious of having raised a stupendous issue, because, though it arose instantly, it was not his business. He was conscious of having discovered a process of transformation and modification which accounted for a great deal of natural history. But he did not put it forward as accounting for the whole of natural history. He included it under the heading of Evolution, though it was only pseudo-evolution at best; but he revealed it as a method of evolution, not as the method of evolution. He did not pretend that it excluded other methods, or that it was the chief method. Though he demonstrated that many transformations which had been taken as functional adaptations (the current phrase for Lamarckian evolution) either certainly were or conceivably might be due to Circumstantial Selection, he was careful not to claim that he had superseded Lamarck or disproved Functional Adaptation. In short, he was not a Darwinian, but an honest naturalist working away at his job with so little preoccupation with theological speculation that he never quarrelled with the theistic Unitarianism into which he was born, and remained to the end the engagingly simple and socially easy-going soul he had been in his boyhood, when his elders doubted whether he would ever be of much use in the world.
HOW WE RUSHED DOWN A STEEP PLACE
Not so the rest of us intellectuals. We all began going to the devil with the utmost cheerfulness. Everyone who had a mind to change, changed it. Only Samuel Butler, on whom Darwin had acted homeopathically, reacted against him furiously; ran up the Lamarckian flag to the top-gallant peak; declared with penetrating accuracy that Darwin had 'banished mind from the universe'; and even attacked Darwin's personal character, unable to bear the fact that the author of so abhorrent a doctrine was an amiable and upright man. Nobody would listen to him. He was so completely submerged by the flowing tide of Darwinism that when Darwin wanted to clear up the misunderstanding on which Butler was basing his personal attacks, Darwin's friends, very foolishly and snobbishly, persuaded him that Butler was too ill-conditioned and negligible to be answered. That they could not recognize in Butler a man of genius mattered little: what did matter was that they could not understand the provocation under which he was raging. They actually regarded the banishment of mind from the universe as a glorious enlightenment and emancipation for which he was ignorantly ungrateful. Even now, when Butler's eminence is unchallenged, and his biographer, Mr. Festing Jones, is enjoying a vogue like that of Boswell or Lockhart, his memoirs shew him rather as a shocking example of the bad controversial manners of our country parsonages than as a prophet who tried to head us back when we were gaily dancing to our damnation across the rainbow bridge which Darwinism had thrown over the gulf which separates life and hope from death and despair. We were intellectually intoxicated with the idea that the world could make itself without design, purpose, skill, or intelligence: in short, without life. We completely overlooked the difference between the modification of species by adaptation to their environment and the appearance of new species: we just threw in the word 'variations' or the word 'sports' (fancy a man of science talking of an unknown factor as a sport instead of as x!) and left them to 'accumulate' and account for the difference between a cockatoo and a hippopotamus. Such phrases set us free to revel in demonstrating to the Vitalists and Bible worshippers that if we once admit the existence of any kind of force, however unintelligent, and stretch out the past to unlimited time for such force to operate accidentally in, that force may conceivably, by the action of Circumstantial Selection, produce a world in which every function has an organ perfectly adapted to perform it, and therefore presents every appearance of having been designed, like Paley's watch, by a conscious and intelligent artificer for the purpose. We took a perverse pleasure in arguing, without the least suspicion that we were reducing ourselves to absurdity, that all the books in the British Museum library might have been written word for word as they stand on the shelves if no human being had ever been conscious, just as the trees stand in the forest doing wonderful things without consciousness.
And the Darwinians went far beyond denying consciousness to trees. Weismann insisted that the chick breaks out of its eggshell automatically; that the butterfly, springing into the air to avoid the pounce of the lizard, 'does not wish to avoid death; knows nothing about death,' what has happened being simply that a flight instinct evolved by Circumstantial Selection reacts promptly to a visual impression produced by the lizard's movement. His proof is that the butterfly immediately settles again on the flower, and repeats the performance every time the lizard springs, thus shewing that it learns nothing from experience, and—Weismann concludes—is not conscious of what it does.
It should hardly have escaped so curious an observer that when the cat jumps up on the dinner table, and you put it down, it instantly jumps up again, and finally establishes its right to a place on the cloth by convincing you that if you put it down a hundred times it will jump up a hundred and one times; so that if you desire its company at dinner you can have it only on its own terms. If Weismann really thought that cats act thus without any consciousness or any purpose, immediate or ulterior, he must have known very little about cats. But a thoroughgoing Weismannite, if any such still survive from those mad days, would contend that I am not at present necessarily conscious of what I am doing; that my writing of these lines, and your reading of them, are effects of Circumstantial Selection; that I heed know no more about Darwinism than a butterfly knows of a lizard's appetite; and that the proof that I actually am doing it unconsciously is that as I have spent forty years in writing in this fashion without, as far as I can see, producing