A Critical History of Greek Philosophy by W. T. Stace (short story to read txt) 📖
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- Author: W. T. Stace
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Now although Aristotle himself does not say it, there are several good reasons for thinking that the true interpretation of his meaning is that the scale of being does not stop at man, that there is no gap in the chain here, but that it proceeds from man through planets and stars--which Aristotle, like Plato, regarded as divine beings--right up to God himself. In the first place, this is required by the logic of his system. The scale has formless matter at the bottom and matterless form at the top. It should proceed direct from one to the other. It is essential to his philosophy that the universe is a single continuous chain. There is no place for such a hiatus between man and the higher beings. Secondly, it is not as if terrestrial life formed a scale, and celestial beings were all on a par, having among themselves no {305} scale of higher and lower. This is not the case. The heavenly bodies have grades among themselves. The higher are related to the lower as form to matter. Thus stars are higher than planets. So that if we suppose that evolution stops at man, what we have is a gap in the middle, a scale below it, and a scale above it. It is like a bridge over a sheet of water, the two ends of which are intact, but which is broken down in the middle. The natural completion of this scheme involves the filling up of the gap. Thirdly, we have another very important piece of evidence. With his valuable idea of evolution Aristotle combined another very curious, and no doubt, absurd, theory. This was that in the scale of the universe the lowest existence is to be found in the middle, the highest at the periphery, and that in general the higher is always outside the lower, so that the spatial universe is a system of concentric spheres, the outer sphere being related to the inner sphere as higher to lower, as form to matter. At the centre of the spherical universe is our earth. Earth, as the lowest element, is in the middle. Then comes a layer of water, then of air, then of fire. Among the heavenly bodies there are fifty-six spheres. The stars are outside the planets and are therefore higher beings. And in conformity with this scheme, the supreme being, God, is outside the outermost sphere. Now it is obvious that, in this scheme, the passage from the centre of the earth to the stars forms a spatial continuity, and it is impossible to resist the conclusion that it also forms a logical continuity, that is, that there is no break in the chain of evolution.
Noting that this is not what Aristotle in so many words says, but that it is our interpretation of his {306} intention, which is almost certainly correct, we conclude that man is not the top of the scale. Next to him come the heavenly bodies. The planets include the sun and the moon, which, revolve round the earth in a direction opposite to that of the stars. Next in the scale come the stars. We need not go into details of the fifty-six spheres. The stars and planets are divine beings. But this is only a comparative term. Man, as the possessor of reason, is also divine, but the heavenly bodies infinitely more so. And this means that they are more rational than man, and so higher in the scale. They live an absolutely blessed and perfect life. They are immortal and eternal, because they are the supreme self-realization of the eternal reason. It is only upon this earth that death and corruption occur, a circumstance which has no doubt emphasized that view of Aristotle's philosophy which holds the gap between man and the stars to be a real one. The heavenly bodies are not composed of the four elements, but of a fifth, a quintessence, which is called ether. Like all elements it must have its natural motion. And as it is the finest and most perfect, its motion must be perfect. And it must be an eternal motion, because the stars are eternal beings. It cannot be motion in a straight line, because that never comes to an end, and so is never perfect. Circular motion alone is perfect. And it is eternal because its end and its beginning are one. Hence the natural motion of ether is circular, and the stars move in perfect circles.
Leaving the stars behind, we reach the summit of the long ladder from matter to form. This is the absolute form, God. As formless matter is not an existent thing, nor is matterless form. God, therefore, is not in the {307} world of space and time at all. But it is one of the curiosities of thought that Aristotle nevertheless gives him a place outside the outermost sphere. What is outside the sphere is, therefore, not space. All space and time are inside this globular universe. Space is therefore finite. And God must be outside the outermost sphere because he is the highest being, and the higher always comes outside the lower.
We have now described the entire scale of evolution. Looking back upon it, we can see its inner significance. The Absolute is reason, matterless form. Everything in the world, therefore, is, in its essence, reason. If we wish to know the essential nature even of this clod of earth, the answer is that it is reason, although this view is not consistently developed by Aristotle, since he allows that matter is a separate principle which cannot be reduced to form. The whole universal process of things is nothing but the struggle of reason to express itself, to actualize itself, to become existent in the world. This it definitely does, for the first time proximately in man, and completely in the stars. It can only express itself in lower beings as sensation (animals), as nutrition (plants), or as gravitation and its opposite (inorganic matter).
The value of Aristotle's theory of evolution is immense. It is not the details that signify. The application of the principle in the world of matter and life could not be carried out satisfactorily in the then state of physical science. It could not be carried out with perfection even now. Omniscience alone could give finality to such a scheme. But it is the principle itself which matters. And that it is one of the most valuable conceptions in {308} philosophy will perhaps be more evident if we compare it, firstly, with modern scientific theories of evolution and secondly, with certain aspects of Hindu pantheism.
What has Aristotle in common with such a writer a Herbert Spencer? According to Spencer, evolution is a movement from the indefinite, incoherent, and homogeneous, to the definite, coherent, and heterogeneous. Aristotle has all this, though his words are different. He calls it a movement from matter to form. Form he describes as whatever gives definiteness to a thing. Matter is the indefinite substrate, form gives it definiteness. Hence for him too the higher being is more definite because it has more form. That matter is the homogeneous, form the heterogeneous, follows from this. We saw that there are in matter itself no differences, because there are no qualities. And this is the same as saying it is homogeneous. Heterogeneity, that is, differentiation, is introduced by form. Coherence is the same thing as organization. Aristotle has himself defined the form of a thing as its organization. For him, as for Spencer, the higher being is simply that which is more organized. Every theory of evolution depends fundamentally upon the idea of organism. Aristotle invented the idea and the word. Spencer carried it no further, though the more advanced physical knowledge of his day enabled him to illustrate it more copiously.
But of course the great difference between Aristotle and the moderns, is that the former did not guess, what the latter have discovered, namely that evolution is not only a logical development, but is a fact in time. Aristotle knew what was meant by the higher and lower organism as well as Darwin, but he did not know, that the latter {309} actually turns into the former in the course of years. But this, though the most obvious, is not really the most important difference between Spencer and Aristotle. The real difference is that Aristotle penetrated far more deeply into the philosophy of evolution than modern science does; that, in fact, modern science has no philosophy of evolution at all. For the fundamental problem here is, if we speak of higher and lower beings, what rational ground have we for calling them higher and lower? That the lower passes in time into the higher is no doubt a very interesting fact to discover, but it dwindles into insignificance beside the problem just indicated, because, on the solution of that problem it depends whether the universe is to be regarded as futile, meaningless, and irrational, or whether we are to see in it order, plan, and purpose. Is Spencer's doctrine a theory of development at all? Or is it not rather simply a theory of change? Something resembling an ape becomes a man. Is there development here, that is, is it a movement from something really lower to something really higher? Or is it merely change from one indifferent thing to another? Is there improvement, or only difference? In the latter case, it makes not the slightest difference whether the ape becomes man, or man becomes an ape. The one is as good as the other. In either case, it is merely a change from Tweedledum to Tweedledee. The change is meaningless, and has no significance.
The modern doctrine of evolution can only render the world more intelligible, can only develop into a philosophy of evolution, by showing that there is evolution and not merely change, and this it can only do by {310} giving a rational basis for the belief that some forms of existence are higher than others. To put the matter bluntly, why is a man higher than a horse, or a horse than a sponge? Answer that, and you have a philosophy of evolution. Fail to answer it, and you have none. Now the man in the street will say that man is higher than the horse, because he not merely eats grass, but thinks, deliberates, possesses art, science, religion, morality. Ask him why these things are higher than eating grass, and he has no answer. From him, then, we turn to Spencer, and there we find a sort of answer. Man is higher because he is more organized. But why is it better to be more organized? Science, as such, has no answer. If pressed in this way, science may of course turn round and say: "there is in the reality of things no higher and no lower; what I mean by higher and lower is simply more and less organized; higher and lower are mere metaphors; they are the human way of looking at things; we naturally call higher what is nearest ourselves; but from the absolute point of view there is no higher and lower." But this is
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