The Life of Reason by George Santayana (best black authors txt) 📖
- Author: George Santayana
- Performer: -
Book online «The Life of Reason by George Santayana (best black authors txt) 📖». Author George Santayana
There is a sense in which the notion of evolution is involved in any mechanical system. Descartes indeed had gone so far as to describe, in strangely simple terms, how the world, with all its detail, might have been produced by starting any motion anywhere in the midst of a plenum at rest. The idea of evolution could not be more curtly put forth; so much so that Descartes had to arm himself against the inevitable charge that he was denying the creation, by protesting that his doctrine was a supposition contrary to fact, and that though the world might have been so formed, it was really created as Genesis recorded. Moreover, in antiquity, every Ionian philosopher had conceived a gradual crystallisation of nature; while Empedocles, in his magnificent oracles, had anticipated Darwin's philosophy without Darwin's knowledge. It is clear that if the forces that hold an organism together are mechanical, and therefore independent of the ideal unities they subtend, those forces suffice to explain the origin of the organism, and can have produced it. Darwin's discoveries, like every other advance in physical insight, are nothing but filling for that abstract assurance. They show us how the supposed mechanism really works in one particular field, in one stage of its elaboration. As earlier naturalists had shown us how mechanical causes might produce the miracle of the sunrise and the poetry of the seasons, so Darwin showed us how similar causes might secure the adaptation of animals to their habitat. Evolution, so conceived, is nothing but a detailed account of mechanical origins.
At the same time the word evolution has a certain pomp and glamour about it which fits ill with so prosaic an interpretation. In the unfolding of a bud we are wont to see, as it were, the fulfilment of a predetermined and glorious destiny; for the seed was an epitome or condensation of a full-blown plant and held within it, in some sort of potential guise, the very form which now peeps out in the young flower. Evolution suggests a prior involution or contraction and the subsequent manifestation of an innate ideal. Evolution should move toward a fixed consummation the approaches to which we might observe and measure. Yet evolution, in this prophetic sense of the word, would be the exact denial of what Darwin, for instance, was trying to prove. It would be a return to Aristotelian notions of heredity and potential being; for it was the essence of Aristotle's physics—of which his theology was an integral part and a logical capping—that the forms which beings approached pre-existed in other beings from which they had been inherited, and that the intermediate stages during which the butterfly shrank to a grub could not be understood unless we referred them to their origin and their destiny. The physical essence and potency of seeds lay in their ideal relations, not in any actual organisation they might possess in the day of their eclipse and slumber. An egg evolved into a chicken not by mechanical necessity—for an egg had a comparatively simple structure—but by virtue of an ideal harmony in things; since it was natural and fitting that what had come from a hen should lead on to a hen again. The ideal nature possessed by the parent, hovering over the passive seed, magically induced it to grow into the parent's semblance; and growth was the gradual approach to the perfection which this ancestral essence prescribed. This was why Aristotle's God, though in character an unmistakable ideal, had to be at the same time an actual existence; since the world would not have known which way to move or what was its inner ideal, unless this ideal, already embodied somewhere else, drew it on and infused movement and direction into the world's structureless substance.
The underlying Platonism in this magical physics is obvious, since the natures that Aristotle made to rule the world were eternal natures. An individual might fail to be a perfect man or a perfect monkey, but the specific human or simian ideal, by which he had been formed in so far as he was formed at all, was not affected by this accidental resistance in the matter at hand, as an adamantine seal, even if at times the wax by defect or impurity failed to receive a perfect impression, would remain unchanged and ready to be stamped perpetually on new material.
The contrast is obvious between this Platonic physics and a naturalism like that of Darwin. The point of evolution, as selection produces it, is that new species may arise. The very title of Darwin's book "The Origin of Species" is a denial of Aristotelianism and, in the pregnant sense, of evolution. It suggests that the type approached by each generation may differ from that approached by the previous one; that not merely the degree of perfection, but the direction of growth, may vary. The individual is not merely unfolded from an inner potentiality derived from a like ancestor and carrying with it a fixed eternal ideal, but on the contrary the very ground plan of organisation may gradually change and a new form and a new ideal may appear. Spontaneous variations—of course mechanically caused[C]—may occur and may modify the hereditary form of animals. These variations, superposed upon one another, may in time constitute a nature wholly unlike its first original. This accidental, cumulative evolution accordingly justifies a declaration of moral liberty. I am not obliged to aspire to the nature my father aspired to, for the ground of my being is partly new. In me nature is making a novel experiment. I am the adoring creator of a new spiritual good. My duties have shifted with my shifting faculties, and the ideal which I propose to myself, and alone can honestly propose, is unprecedented, the expression of a moving existence and without authority beyond the range of existences congruous with mine.
All that is scientific or Darwinian in the theory of evolution is accordingly an application of mechanism, a proof that mechanism lies at the basis of life and morals. The Aristotelian notion of development, however, was too deeply rooted in tradition for it to disappear at a breath. Evolution as conceived by Hegel, for instance, or even by Spencer, retained Aristotelian elements, though these were disguised and hidden under a cloud of new words. Both identify evolution with progress, with betterment; a notion which would naturally be prominent in any one with enlightened sympathies living in the nineteenth century, when a new social and intellectual order was forcing itself on a world that happened largely to welcome the change, but a notion that has nothing to do with natural science. The fittest to live need not be those with the most harmonious inner life nor the best possibilities. The fitness might be due to numbers, as in a political election, or to tough fibre, as in a tropical climate. Of course a form of being that circumstances make impossible or hopelessly laborious had better dive under and cease for the moment to be; but the circumstances that render it inopportune do not render it essentially inferior. Circumstances have no power of that kind; and perhaps the worst incident in the popular acceptance of evolution has been a certain brutality thereby introduced into moral judgment, an abdication of human ideals, a mocking indifference to justice, under cover of respect for what is bound to be, and for the rough economy of the world. Disloyalty to the good in the guise of philosophy had appeared also among the ancients, when their political ethics had lost its authority, just as it appeared among us when the prestige of religion had declined. The Epicureans sometimes said that one should pursue pleasure because all the animals did so, and the Stoics that one should fill one's appointed place in nature, because such was the practice of clouds and rivers.
Hegel possessed a keen scent for instability in men's attitudes and opinions; he had no need of Darwin's facts to convince him that in moral life, at least, there were no permanent species and that every posture of thought was an untenable half-way station between two others. His early contact with Protestant theology may have predisposed him to that opinion. At any rate he had no sympathy with that Platonism that allowed everything to have its eternal ideal, with which it might ultimately be identified. Such ideals would be finite, they would arrest the flux, and they would try to break loose from their enveloping conditions. Hegel was no moralist in the Socratic sense, but a naturalist seeking formulas for the growth of moral experience. Instead of questioning the heart, he somewhat satirically described its history. At the same time he was heir to that mythology which had deified the genetic or physical principle in things, and though the traditional myths suffered cruel operations at his hands, and often died of explanation, the mythical principle itself remained untouched and was the very breath of his nostrils. He never doubted that the formula he might find for the growth of experience would be also the ultimate good. What other purpose could the world have than to express the formula according to which it was being generated?
In this honest conviction we see the root, perhaps, of that distaste for correct physics that prevails among many who call themselves idealists. If physics were for some reason to be adored, it would be disconcerting to find in physics nothing but atoms and a void. It is hard to understand, however, why a fanciful formula expressing the evolution of this perturbed universe, and painting it no better than it is, should be more worshipful than an exact formula meant to perform the same office. A myth that enlarged the world and promised a complete transformation of its character might have its charms; but the improvement is not obvious that accrues by making the drift of things, just as it drifts, its own standard. Yet for Hegel it mattered nothing how unstable all ideals might be, since the only use of them was to express a principle of transition, and this principle was being realised, eternally and unawares, by the self-devouring and self-transcending purposes rolling in the flux.
This philosophy might not be much relished if it were more frankly expressed; yet something of the sort floats vaguely before most minds when they think of evolution. The types of being change, they say: in this sense the Aristotelian notion of a predetermined form unfolding itself in each species has yielded to a more correct and more dynamic physics. But the changes, so people imagine, express a predetermined ideal, no longer, of course, the ideal of these specific things, but one overarching the cosmic movement. The situation might be described by saying that this is Aristotle's view adapted to a world in which there is only one species or only one individual. The earlier phases of life are an imperfect expression of the same nature which the later phases express more fully. Hence the triumphant march of evolution and the assumption that whatever is later is necessarily better than what went before. If a child were simply the partial expression of a man, his single desire would be to grow up, and when he was grown up he would embody all he had been striving for and would be happy for ever after. So if man were nothing but a halting reproduction of divinity and destined to become
Comments (0)