Back to Methuselah: A Metabiological Pentateuch. Bernard ShawЧитать онлайн книгу.
can be achieved in other ways, as by deep sea fishes. He circulates his blood by pumping it with his heart. He demands a meal, and proceeds at once to perform the most elaborate chemical operations on the food he swallows. He manufactures teeth; discards them; and replaces them with fresh ones. Compared to these habitual feats, walking, standing upright, and bicycling are the merest trifles; yet it is only by going through the wanting, trying process that he can stand, walk, or cycle, whereas in the other and far more difficult and complex habits he not only does not consciously want nor consciously try, but actually consciously objects very strongly. Take that early habit of cutting the teeth: would he do that if he could help it? Take that later habit of decaying and eliminating himself by death—equally an acquired habit, remember—how he abhors it! Yet the habit has become so rooted, so automatic, that he must do it in spite of himself, even to his own destruction.
We have here a routine which, given time enough for it to operate, will finally produce the most elaborate forms of organized life on Lamarckian lines without the intervention of Circumstantial Selection at all. If you can turn a pedestrian into a cyclist, and a cyclist into a pianist or violinist, without the intervention of Circumstantial Selection, you can turn an amoeba into a man, or a man into a superman, without it. All of which is rank heresy to the Neo-Darwinian, who imagines that if you stop Circumstantial Selection, you not only stop development but inaugurate a rapid and disastrous degeneration.
Let us fix the Lamarckian evolutionary process well in our minds. You are alive; and you want to be more alive. You want an extension of consciousness and of power. You want, consequently, additional organs, or additional uses of your existing organs: that is, additional habits. You get them because you want them badly enough to keep trying for them until they come. Nobody knows how: nobody knows why: all we know is that the thing actually takes place. We relapse miserably from effort to effort until the old organ is modified or the new one created, when suddenly the impossible becomes possible and the habit is formed. The moment we form it we want to get rid of the consciousness of it so as to economize our consciousness for fresh conquests of life; as all consciousness means preoccupation and obstruction. If we had to think about breathing or digesting or circulating our blood we should have no attention to spare for anything else, as we find to our cost when anything goes wrong with these operations. We want to be unconscious of them just as we wanted to acquire them; and we finally win what we want. But we win unconsciousness of our habits at the cost of losing our control of them; and we also build one habit and its corresponding functional modification of our organs on another, and so become dependent on our old habits. Consequently we have to persist in them even when they hurt us. We cannot stop breathing to avoid an attack of asthma, or to escape drowning. We can lose a habit and discard an organ when we no longer need them, just as we acquired them; but this process is slow and broken by relapses; and relics of the organ and the habit long survive its utility. And if other and still indispensable habits and modifications have been built on the ones we wish to discard, we must provide a new foundation for them before we demolish the old one. This is also a slow process and a very curious one.
THE MIRACLE OF CONDENSED RECAPITULATION
The relapses between the efforts to acquire a habit are important because, as we have seen, they recur not only from effort to effort in the case of the individual, but from generation to generation in the case of the race. This relapsing from generation to generation is an invariable characteristic of the evolutionary process. For instance, Raphael, though descended from eight uninterrupted generations of painters, had to learn to paint apparently as if no Sanzio had ever handled a brush before. But he had also to learn to breathe, and digest, and circulate his blood. Although his father and mother were fully grown adults when he was conceived, he was not conceived or even born fully grown: he had to go back and begin as a speck of protoplasm, and to struggle through an embryonic lifetime, during part of which he was indistinguishable from an embryonic dog, and had neither a skull nor a backbone. When he at last acquired these articles, he was for some time doubtful whether he was a bird or a fish. He had to compress untold centuries of development into nine months before he was human enough to break loose as an independent being. And even then he was still so incomplete that his parents might well have exclaimed 'Good Heavens! have you learnt nothing from our experience that you come into the world in this ridiculously elementary state? Why cant you talk and walk and paint and behave decently?' To that question Baby Raphael had no answer. All he could have said was that this is how evolution or transformation happens. The time may come when the same force that compressed the development of millions of years into nine months may pack many more millions into even a shorter space; so that Raphaels may be born painters as they are now born breathers and blood circulators. But they will still begin as specks of protoplasm, and acquire the faculty of painting in their mother's womb at quite a late stage of their embryonic life. They must recapitulate the history of mankind in their own persons, however briefly they may condense it.
Nothing was so astonishing and significant in the discoveries of the embryologists, nor anything so absurdly little appreciated, as this recapitulation, as it is now called: this power of hurrying up into months a process which was once so long and tedious that the mere contemplation of it is unendurable by men whose span of life is three-score-and-ten. It widened human possibilities to the extent of enabling us to hope that the most prolonged and difficult operation of our minds may yet become instantaneous, or, as we call it, instinctive. It also directed our attention to examples of this packing up of centuries into seconds which were staring us in the face in all directions. As I write these lines the newspapers are occupied by the exploits of a child of eight, who has just defeated twenty adult chess players in twenty games played simultaneously, and has been able afterwards to reconstruct all the twenty games without any apparent effort of memory. Most people, including myself, play chess (when they play it at all) from hand to mouth, and can hardly recall the last move but one, or foresee the next but two. Also, when I have to make an arithmetical calculation, I have to do it step by step with pencil and paper, slowly, reluctantly, and with so little confidence in the result that I dare not act on it without 'proving' the sum by a further calculation involving more ciphering. But there are men who can neither read, write, nor cipher, to whom the answer to such sums as I can do is instantly obvious without any conscious calculation at all; and the result is infallible. Yet some of these natural arithmeticians have but a small vocabulary; are at a loss when they have to find words for any but the simplest everyday occasions; and cannot for the life of them describe mechanical operations which they perform daily in the course of their trade; whereas to me the whole vocabulary of English literature, from Shakespear to the latest edition of the Encyclopaedia Britannica, is so completely and instantaneously at my call that I have never had to consult even a thesaurus except once or twice when for some reason I wanted a third or fourth synonym. Again, though I have tried and failed to draw recognizable portraits of persons I have seen every day for years, Mr. Bernard Partridge, having seen a man once, will, without more strain than is involved in eating a sandwich, draw him to the life. The keyboard of a piano is a device I have never been able to master; yet Mr. Cyril Scott uses it exactly as I use my own fingers; and to Sir Edward Elgar an orchestral score is as instantaneously intelligible at sight as a page of Shakespear is to me. One man cannot, after trying for years, finger the flute fluently. Another will take up a flute with a newly invented arrangement of keys on it, and play it at once with hardly a mistake. We find people to whom writing is so difficult that they prefer to sign their name with a mark, and beside them men who master systems of shorthand and improvise new systems of their own as easily as they learnt the alphabet. These contrasts are to be seen on all hands, and have nothing to do with variations in general intelligence, nor even in the specialized intelligence proper to the faculty in question: for example, no composer or dramatic poet has ever pretended to be able to perform all the parts he writes for the singers, actors, and players who are his executants. One might as well expect Napoleon to be a fencer, or the Astronomer Royal to know how many beans make five any better than his bookkeeper. Even exceptional command of language does not imply the possession of ideas to express; Mezzofanti, the master of fifty-eight languages, had less to say in them than Shakespear with his little