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A Critical Glance Into Darwin
by
“Man,” says Darwin, “selects only for his own good; Nature only for the good of the being which she tends.” But Nature’s good is of another order than man’s: it is the good of all. Nature aims at a general good, man at a particular good to himself. Man waters his garden; Nature sends the rain broadcast upon the just and the unjust, upon the sea as upon the land. Man directs and controls his planting and his harvesting along specific lines: he selects his seed and prepares his soil; Nature has no system in this respect: she trusts her seeds to the winds and the waters, and to beasts and birds, and her harvest rarely fails.
Nature’s methods, we say, are blind, haphazard; the wind blows where it listeth, and the seeds fall where the winds and waters carry them; the frosts blight this section and spare that; the rains flood the country in the West and the drought burns up the vegetation in the East. And yet we survive and prosper. Nature averages up well. We see nothing like purpose or will in her total scheme of things, yet inside her hit-and-miss methods, her storms and tornadoes and earthquakes and distempers, we see a fundamental benefaction. If it is not good-will, it amounts to the same thing. Our fathers saw special providences, but we see only unchangeable laws. To compare Nature’s selection with man’s selection is like arguing from man’s art to Nature’s art. Nature has no art, no architecture, no music. Her temples, as the poets tell us, are the woods, her harps the branches of the trees, her minstrels the birds and insects, her gardens the fields and waysides–all safe comparisons for purposes of literature, but not for purposes of science.
Man alone selects, or works by a definite method. Might we not as well say that Nature ploughs and plants and trims and harvests? We pick out our favorites among plants and animals, those that best suit our purpose. We go straight to our object, with as little delay and waste as possible. Not so Nature. Her course is always a round-about one. Our petty economies are no concern of hers. Our choice selection of rich milkers, prolific poultry, or heavy-fleeced sheep is with her quickly sacrificed for the qualities of strength and cunning and speed, as these alone have survival value. Man wants specific results at once. Nature works slowly to general results. Her army is drilled only in battle. Her tools grow sharper in the using. The strength of her species is the strength of the obstacles they overcome.
What is called Darwinism is entirely an anthropomorphic view of Nature–Nature humanized and doing as man does. What is called Natural Selection is man’s selection read into animate nature. We see in nature what we have to call intelligence–the adaptation of means to ends. We see purpose in all living things, but not in the same sense in non-living things. The purpose is not in the light, but in the eye; in the ear, but not in the sound; in the lungs, and not in the air; in the stomach, and not in the food; in the various organs of the body, and not in the forces that surround and act upon it. We cannot say that the purpose of the clouds is to bring rain, or of the sun to give light and warmth, in the sense that we can say it is the purpose of the eyelid to protect the eye, of the teeth to masticate the food, or of the varnish upon the leaves to protect the leaves.
The world was not made for us, but we are here because the world was made as it is. We are the secondary fact and not the primary. Nature is non-human, non-moral, non-religious, non-scientific, though it is from her that we get our ideas of all these things. All parts and organs of living bodies have, or have had, a purpose. Nature is blind, but she knows what she wants and she gets it. She is blind, I say, because she is all eyes, and sees through the buds of her trees and the rootlets of her plants as well as by the optic nerves in her animals. And, though I believe that the accumulation of variations is the key to new species, yet this accumulation is not based upon outward utility but upon an innate tendency to development–the push of life, or creative evolution, as Bergson names it; not primarily because the variations are advantages, but because the formation of a new species is such a slow process, stretches over such a period of geologic time, that the slight variations from generation to generation could have no survival value. The primary factor is the inherent tendency to development. The origin of species is on a scale of time of enormous magnitude. What takes place among our domestic animals of a summer day is by no means a safe guide as to what befell their ancestors in the abysses of geologic time. It is true that Nature may be read in the little as well as in the big,–Natura in minimis existat,–in the gnat as well as in the elephant; but she cannot be read in our yearly calendars as she can in the calendars of the geologic strata. Species go out and species come in; the book of natural revelation opens and closes at chance places, and rarely do we get a continuous record–in no other case more clearly than in that of the horse.