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Do not too hastily say that this is inconceivable. To Circumstantial Selection all mechanical and chemical reactions are possible, provided you accept the geologists' estimates of the great age of the earth, and therefore allow time enough for the circumstances to operate. It is true that mere survival of the fittest in the struggle for existence plus sexual selection fail as hopelessly to account for Darwin's own life work as for my conquest of the bicycle; but who can prove that there are not other soulless factors, unnoticed or undiscovered, which only require imagination enough to fit them to the evolution of an automatic Jesus or Shakespear? When a man tells you that you are a product of Circumstantial Selection solely, you cannot finally disprove it. You can only tell him out of the depths of your inner conviction that he is a fool and a liar. But as this, though British, is uncivil, it is wiser to offer him the counter-assurance that you are the product of Lamarckian evolution, formerly called Functional Adaptation and now Creative Evolution, and challenge him to disprove that, which he can no more do than you can disprove Circumstantial Selection, both forces being conceivably able to produce anything if you only give them rope enough. You may also defy him to act for a single hour on the assumption that he may safely cross Oxford Street in a state of unconsciousness, trusting to his dodging reflexes to react automatically and promptly enough to the visual impression produced by a motor bus, and the audible impression produced by its hooter. But if you allow yourself to defy him to explain any particular action of yours by Circumstantial Selection, he should always be able to find some explanation that will fit the case if only he is ingenious enough and goes far enough to find it. Darwin found several such explanations in his controversies. Anybody who really wants to believe that the universe has been produced by Circumstantial Selection co-operating with a force as inhuman as we conceive magnetism to be can find a logical excuse for his belief if he tries hard enough.