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Biology does not look with enthusiasm on the methods of chance and accident. The choice and transmission of the forty-eight chromosomes that give to each individual his character-potential are probably in accordance with some obscure biological law through which the unfathomable divine will operates.
The common sense world of things, events, qualities, minds, feelings, and so on, in which we all pass our every day lives is an early and somewhat crude attempt to describe the continually changing fact which each of us experiences directly, but it is perhaps more misleading than the later elaborate constructions of chemistry, physics, biology or physchology in that things and qualities are more easily mistaken for facts than more obviously hypothetical assumptions.
This being so from the standpoint of pure physics, biology takes up the tale afresh, and devises means of its own for describing the particular ways in which things hang together in virtue of their being alive. And biology finds that it cannot conveniently abstract away the reference to time. It cannot treat living things as machines. What does it do, then? It takes the form of history.
But when we come to consider the matter in detail, in its particular personal applications, we find that a new factor asserts itself. We find that our inherited social and religious traditions exert a pressure, all on one side, which makes it impossible to place the relations of love and chastity simply on the basis of biology and reason. We are confronted at the outset by our traditions.
"Only sociology, founded on biology, founded on all the positive sciences, can give us the laws of humanity. Humanity, or human communities, are the organisms already prepared, or still in process of formation, and which are subservient to all the laws of the evolution of organisms. "One of the chief of these laws is the variation of destination among the portions of the organs.
Spencer embody the spirit of Descartes in the knowledge of our own day, and may be regarded as the "Principes de la Philosophie" of the nineteenth century; while, whatever hesitation may not unfrequently be felt by less daring minds, in following Haeckel in many of his speculations, his attempt to systematise the doctrine of evolution and to exhibit its influence as the central thought of modern biology, cannot fail to have a far-reaching influence on the progress of science.
The battle of organic evolution has been waged by the Darwins, the Huxleys, and the Müllers on the one hand, against the Cuviers, the Owens, and the Virchows on the other. Still, it is not only in biology, as I said just now, that a taste of the Tropics in early life exerts a marked widening and philosophic influence upon a man's whole mental horizon.
With regard to high-school pupils, we should remember that nine-tenths of the desirable information is already included in the biology of our best high schools. The remaining tenth is that which connects all life with human life; and this requires tact and exceptional skill.
In fact, they were regarded as, so to speak, individuals without personality, mere slaves and helots under the ganglion-oligarchy which was controlled by the tyrant mind, and he but the mouthpiece of one of the Olympians. But time has changed all that, and already the triumphs of democracy have been as signal in biology as they have been in politics, and far more rapid.
In my effort to emancipate myself from life, I succeeded only in handing myself over to my senses. And my senses, I perceive, belong not to me but to the procreative principles of biology. They have been loaned to me by a master chemist. When I die my cherished soul will disintegrate into nothing. It will become a useless thing.
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