The Life of Reason Part 52

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[Sidenote: Looser principles tried first.]

Science becomes demonstrable in proportion as it becomes abstract. It becomes in the same measure applicable and useful, as mathematics witnesses, whenever the abstraction is judiciously made and has seized the profounder structural features in the phenomenon. These features are often hard for human eyes to discern, buried as they may be in the internal infinitesimal texture of things. Things accordingly seem to move on the world's stage in an unaccountable fas.h.i.+on, and to betray magic affinities to what is separated from them by apparent chasms. The types of relation which the mind may observe are multifarious. Any chance conjunction, any incidental harmony, will start a hypothesis about the nature of the universe and be the parent image of a whole system of philosophy. In self-indulgent minds most of these standard images are dramatic, and the cue men follow in unravelling experience is that offered by some success or failure of their own. The sanguine, having once found a pearl in a dunghill, feel a glorious a.s.surance that the world's true secret is that everything in the end is ordered for everybody's benefit--and that is optimism. The atrabilious, being ill at ease with themselves, see the workings everywhere of insidious sin, and conceive that the world is a dangerous place of trial. A somewhat more observant intellect may decide that what exists is a certain number of definite natures, each striving to preserve and express itself; and in such language we still commonly read political events and our friend's actions. At the dawn of science a Thales, observing the ways and the conditions of things somewhat more subtly, will notice that rain, something quite advent.i.tious to the fields, is what covers them with verdure, that the slime breeds life, that a liquid will freeze to stone and melt to air; and his shrewd conclusion will be that everything is water in one disguise or another. It is only after long acc.u.mulated observation that we can reach any exact law of nature; and this law we hardly think of applying to living things. These have not yet revealed the secret of their structure, and clear insight is vouchsafed us only in such regions as that of mathematical physics, where cogency in the ideal system is combined with adequacy to explain the phenomena.

[Sidenote: Mechanism for the most part hidden.]

These exact sciences cover in the gross the field in which human life appears, the antecedents of this life, and its instruments. To a speculative mind, that had retained an ingenuous sense of nature's inexhaustible resources and of man's essential continuity with other natural things, there could be no ground for doubting that similar principles (could they be traced in detail) would be seen to preside over all man's action and pa.s.sion. A thousand indications, drawn from introspection and from history, would be found to confirm this speculative presumption. It is not only earthquakes and floods, summer and winter, that bring human musings sharply to book. Love and ambition are unmistakable blossomings of material forces, and the more intense and poetical a man's sense is of his spiritual condition the more loudly will he proclaim his utter dependence on nature and the ident.i.ty of the moving principle in him and in her.

Mankind and all its works are undeniably subject to gravity and to the law of projectiles; yet what is true of these phenomena in bulk seems to a superficial observation not to be true of them in detail, and a person may imagine that he subverts all the laws of physics whenever he wags his tongue. Only in inorganic matter is the ruling mechanism open to human inspection: here changes may be seen to be proportionate to the elements and situation in which they occur. Habit here seems perfectly steady and is called necessity, since the observer is able to deduce it unequivocally from given properties in the body and in the external bodies acting upon it. In the parts of nature which we call living and to which we impute consciousness, habit, though it be fatal enough, is not so exactly measurable and perspicuous. Physics cannot account for that minute motion and pullulation in the earth's crust of which human affairs are a portion. Human affairs have to be surveyed under categories lying closer to those employed in memory and legend. These looser categories are of every sort--grammatical, moral, magical--and there is no knowing when any of them will apply or in what measure.

Between the matters covered by the exact sciences and vulgar experience there remains, accordingly, a wide and nebulous gulf. Where we cannot see the mechanism involved in what happens we have to be satisfied with an empirical description of appearances as they first fall together in our apprehension; and this want of understanding in the observer is what popular philosophy calls intelligence in the world.

[Sidenote: Yet presumably pervasive.]

That this gulf is apparent only, being due to inadequacy and confusion in human perception rather than to incoherence in things, is a speculative conviction altogether trustworthy. Any one who can at all catch the drift of experience--moral no less than physical--must feel that mechanism rules the whole world. There are doubleness and diversity enough in things to satiate the greatest lover of chaos; but that a cosmos nevertheless underlies the superficial play of sense and opinion is what all practical reason must a.s.sume and what all comprehended experience bears witness to. A cosmos does not mean a disorder with which somebody happens to be well pleased; it means a necessity from which every one must draw his happiness. If a principle is efficacious it is to that extent mechanical. For to be efficacious a principle must apply necessarily and proportionately; it must a.s.sure us that where the factors are the same as on a previous occasion the quotient will be the same also.

Now, in order that the flux of things should contain a repet.i.tion, elements must be identified within it; these identical elements may then find themselves in an identical situation, on which the same result may ensue which ensued before. If the elements were not constant and recognisable, or if their relations did not suffice to determine the succeeding event, no observation could be transferred with safety from the past to the future. Thus art and comprehension would be defeated together. Novelties in the world are not lacking, because the elements entering at any moment into a given combination have never before entered into a combination exactly similar. Mechanism applies to the matter and minute texture of things; but its applying there will create, at each moment, fresh ideal wholes, formal unities which mind emanates from and represents. The result will accordingly always be unprecedented in the total impression it produces, in exact proportion to the singularity of the situation in hand. Mechanical processes are not like mathematical relations, because they _happen_. What they express the form of is a flux, not a truth or an ideal necessity. The situation may therefore always be new, though produced from the preceding situation by rules which are invariable, since the preceding situation was itself novel.

Mechanism might be called the dialectic of the irrational. It is such a measure of intelligibility as is compatible with flux and with existence. Existence itself being irrational and change unintelligible, the only necessity they are susceptible of is a natural or empirical necessity, impinging at both ends upon brute matters of fact. The existential elements, their situation, number, affinities, and mutual influence all have to be begged before calculation can begin. When these surds have been accepted at their face value, inference may set to work among them; yet the inference that mechanism will continue to reign will not amount to certain knowledge until the event inferred has come to give it proof. Calculation in physics differs from pure dialectic in that the ultimate object it looks to is not ideal. Theory here must revert to the immediate flux for its sanction, whereas dialectic is a centrifugal emanation from existence and never returns to its point of origin. It remains suspended in the ether of those eternal relations which forms have, even when found embedded in matter.

[Sidenote: Inadequacy of consciousness.]

If the total flux is continuous and naturally intelligible, why is the part felt by man so disjointed and opaque? An answer to this question may perhaps be drawn from the fact that consciousness apparently arises to express the functions only of extremely complicated organisms. The basis of thought is vastly more elaborate than its deliverance. It takes a wonderful brain and exquisite senses to produce a few stupid ideas.

The mind starts, therefore, with a tremendous handicap. In order to attain adequate practical knowledge it would have to represent clearly its own conditions; for the purpose of mind is its own furtherance and perfection, and before that purpose could be fulfilled the mind's interests would have to become parallel to the body's fortunes. This means that the body's actual relations in nature would have to become the mind's favourite themes in discourse. Had this harmony been attained, the more accurately and intensely thought was exercised the more stable its status would become and the more prosperous its undertakings, since lively thought would then be a symptom of health in the body and of mechanical equilibrium with the environment.

The body's actual relations, however, on which health depends, are infinitely complex and immensely extended. They sweep the whole material universe and are intertwined most closely with all social and pa.s.sionate forces, with their incalculable mechanical springs. Meantime the mind begins by being a feeble and inconsequent ghost. Its existence is intermittent and its visions unmeaning. It fails to conceive its own interests or the situations that might support or defeat those interests. If it pictures anything clearly, it is only some phantastic image which in no way represents its own complex basis. Thus the parasitical human mind, finding what clear knowledge it has laughably insufficient to interpret its destiny, takes to neglecting knowledge altogether and to hugging instead various irrational ideas. On the one hand it lapses into dreams which, while obviously irrelevant to practice, express the mind's vegetative instincts; hence art and mythology, which subst.i.tute play-worlds for the real one on correlation with which human prosperity and dignity depend. On the other hand, the mind becomes wedded to conventional objects which mark, perhaps, the turning-points of practical life and plot the curve of it in a schematic and disjointed fas.h.i.+on, but which are themselves entirely opaque and, as we say, material. Now as matter is commonly a name for things not understood, men materially minded are those whose ideas, while practical, are meagre and blind, so that their knowledge of nature, if not invalid, is exceedingly fragmentary. This grossness in common sense, like irrelevance in imagination, springs from the fact that the mind's representative powers are out of focus with its controlling conditions.

[Sidenote: Its articulation inferior to that of its objects.]

In other words, sense ought to correspond in articulation with the object to be represented--otherwise the object's structure, with the fate it imports; cannot be transferred into a.n.a.logous ideas. Now the human senses are not at all fitted to represent an organism on the scale of the human body. They catch its idle gestures but not the inner processes which control its action. The senses are immeasurably too gross. What to them is a _minimum visibile_, a just perceptible atom, is in the body's structure, very likely, a system of worlds, the inner cataclysms of which count in producing that so-called atom's behaviour and endowing it with affinities apparently miraculous. What must the seed of animals contain, for instance, to be the ground, as it notoriously is, for every physical and moral property of the offspring?

Or what must the system of signals and the reproductive habit in a brain be, for it to co-ordinate instinctive movements, learn tricks, and remember? Our senses can represent at all adequately only such objects as the solar system or a work of human architecture, where the unit's inner structure and fermentation may be provisionally neglected in mastering the total. The architect may reckon in bricks and the astronomer in planets and yet foresee accurately enough the practical result. In a word, only what is extraordinarily simple is intelligible to man, while only what is extraordinarily complex can support intelligence. Consciousness is essentially incompetent to understand what most concerns it, its own vicissitudes, and sense is altogether out of scale with the objects of practical interest in life.

[Sidenote: Science consequently r.e.t.a.r.ded.]

One consequence of this profound maladjustment is that science is hard to attain and is at first paradoxical. The change of scale required is violent and frustrates all the mind's rhetorical habits. There is a constant feeling of strain and much flying back to the mother-tongue of myth and social symbol. Every wrong hypothesis is seized upon and is tried before any one will entertain the right one. Enthusiasm for knowledge is chilled by repeated failures and a great confusion cannot but reign in philosophy. A man with an eye for characteristic features in various provinces of experience is encouraged to deal with each upon a different principle; and where these provinces touch or actually fuse, he is at a loss what method of comprehension to apply. There sets in, accordingly, a tendency to use various methods at once or a different one on each occasion, as language, custom, or presumption seems to demand. Science is reduced by philosophers to plausible discourse, and the more plausible the discourse is, by leaning on all the heterogeneous prejudices of the hour, the more does it foster the same and discourage radical investigation.

Thus even Aristotle felt that good judgment and the dramatic habit of things altogether excluded the simple physics of Democritus. Indeed, as things then stood, Democritus had no right to his simplicity, except that divine right which comes of inspiration. His was an indefensible faith in a single radical insight, which happened nevertheless to be true. To justify that insight forensically it would have been necessary to change the range of human vision, making it telescopic in one region and microscopic in another; whereby the objects so transfigured would have lost their familiar aspect and their habitual context in discourse.

Without such a startling change of focus nature can never seem everywhere mechanical. Hence, even to this day, people with broad human interests are apt to discredit a mechanical philosophy. Seldom can penetration and courage in thinking hold their own against the miscellaneous habits of discourse; and n.o.body remembers that moral values must remain captious, and imaginative life ign.o.ble and dark, so long as the whole basis and application of them is falsely conceived.

Discoveries in science are made only by near-sighted specialists, while the influence of public sentiment and policy still works systematically against enlightenment.

[Sidenote: and speculation rendered necessary.]

The maladaptation of sense to its objects has a second consequence: that speculation is in a way n.o.bler for man than direct perception. For direct perception is wholly inadequate to render the force, the reality, the subtle relations of the object perceived, unless this object be a sh.e.l.l only, like a work of fine art, where nothing counts but the surface. Since the function of perception is properly to give understanding and dominion, direct perception is a defeat and, as it were, an insult to the mind, thus forced to busy itself about so unintelligible and dense an apparition. aesthetic enthusiasm cares nothing about what the object inwardly is, what is its efficacious movement and real life. It revels selfishly in the harmonies of perception itself, harmonies which perhaps it attributes to the object through want of consideration. These aesthetic objects, which have no intrinsic unity or cohesion, lapse in the most melancholy and inexplicable fas.h.i.+on before our eyes. Then we cry that beauty wanes, that life is brief, and that its prizes are deceptive. Our minds have fed on casual aspects of nature, like tints in sunset clouds.

Imaginative fervour has poured itself out exclusively on these apparitions, which are without relevant backing in the world; and long, perhaps, before this life is over, which we called too brief, we begin to pine for another, where just those images which here played so deceptively on the surface of the flux may be turned into fixed and efficacious realities. Meantime speculation amuses us with prophecies about what such realities might be. We look for them, very likely, in the wrong place, namely, in human poetry and eloquence, or at best in dialectic; yet even when stated in these mythical terms the hidden world divined in meditation seems n.o.bler and, as we say, more real than the objects of sense. For we hope, in those speculative visions, to reach the permanent, the efficacious, the stanch principles of experience, something to rely on in prospect and appeal to in perplexity.

Science, in its prosaic but trustworthy fas.h.i.+on, pa.s.ses likewise beyond the dreamlike unities and cadences which sense discloses; only, as science aims at controlling its speculation by experiment, the hidden reality it discloses is exactly like what sense perceives, though on a different scale, and not observable, perhaps, without a magic carpet of hypothesis, to carry the observer to the ends of the universe or, changing his dimensions, to introduce him into those infinitesimal abysses where nature has her workshop. In this region, were it sufficiently explored, we might find just those solid supports and faithful warnings which we were looking for with such ill success in our rhetorical speculations. The machinery disclosed would not be human; it would be machinery. But it would for that very reason serve the purpose which made us look for it instead of remaining, like the lower animals, placidly gazing on the pageants of sense, till some unaccountable pang forced us to spasmodic movement. It is doubtless better to find material engines--not necessarily inanimate, either--which may really serve to bring order, security, and progress into our lives, than to find impa.s.sioned or ideal spirits, that can do nothing for us except, at best, a.s.sure us that they are perfectly happy.

[Sidenote: Dissatisfaction with mechanism partly natural.]

The reigning aversion to mechanism is partly natural and partly artificial. The natural aversion cannot be wholly overcome. Like the aversion to death, to old age, to labour, it is called forth by man's natural situation in a world which was not made for him, but in which he grew. That the efficacious structure of things should not be intentionally spectacular nor poetical, that its units should not be terms in common discourse, nor its laws quite like the logic of pa.s.sion, is of course a hard lesson to learn. The learning, however--not to speak of its incidental delights--is so extraordinarily good for people that only with that instruction and the blessed renunciations it brings can clearness, dignity, or virility enter their minds. And of course, if the material basis of human strength could be discovered and better exploited, the free activity of the mind would be not arrested but enlarged. Geology adds something to the interest of landscape, and botany much to the charm of flowers; natural history increases the pleasure with which we view society and the justice with which we judge it. An instinctive sympathy, a solicitude for the perfect working of any delicate thing, as it makes the ruffian tender to a young child, is a sentiment inevitable even toward artificial organisms. Could we better perceive the fine fruits of order, the dire consequences of every specific cruelty or jar, we should grow doubly considerate toward all forms; for we exist through form, and the love of form is our whole real inspiration.

[Sidenote: and partly artificial.]

The artificial prejudice against mechanism is a fruit of party spirit.

When a myth has become the centre or sanction for habits and inst.i.tutions, these habits and inst.i.tutions stand against any conception incompatible with that myth. It matters nothing that the values the myth was designed to express may remain standing without it, or may be transferred to its successor. Social and intellectual inertia is too great to tolerate so simple an evolution. It divides opinions not into false and true but into high and low, or even more frankly into those which are acceptable and comforting to its ruffled faith and those which are dangerous, alarming, and unfortunate. Imagine Socrates "viewing with alarm" the implications of an argument! This artificial prejudice is indeed modern and will not be eternal. Ancient sages, when they wished to rebuke the atheist, pointed to the very heavens which a sentimental religion would nowadays gladly prove to be unreal, lest the soul should learn something of their method. Yet the Ptolemaic spheres were no more manlike and far less rich in possibilities of life than the Copernican star-dust. The ancients thought that what was intelligible was divine.

Order was what they meant by intelligence, and order productive of excellence was what they meant by reason. When they noticed that the stars moved perpetually and according to law, they seriously thought they were beholding the G.o.ds. The stars as we conceive them are not in that sense perfect. But the order which nature does not cease to manifest is still typical of all order, and is sublime. It is from these regions of embodied law that intelligibility and power combined come to make their covenant with us, as with all generations.

[Sidenote: Bia.s.sed judgments inspired by moral inertia.]

The emotions and the moral principles that are naturally allied to materialism suffer an eclipse when materialism, which is properly a primary or dogmatic philosophy, breathing courage and victory, appears as a destructive force and in the incongruous role of a critic. One dogmatism is not fit to criticise another; their conflict can end only in insults, sullenness, and an appeal to that physical drift and irrational selection which may ultimately consign one party to oblivion.

But a philosophy does ill to boast of such borrowed triumphs. The next turn of the wheel may crush the victor, and the opinions hastily buried may rise again to pose as the fas.h.i.+onable and superior insights of a later day. To criticise dogmatism it is necessary to be a genuine sceptic, an honest transcendentalist, that falls back on the immediate and observes by what principles of logical architecture the ultimate, the reality discovered, has been inferred from it. Such criticism is not necessarily destructive; some construction and some belief being absolutely inevitable, if reason and life are to operate at all, criticism merely offers us the opportunity of revising and purifying our dogmas, so as to make them reasonable and congruous with practice.

Materialism may thus be reinstated on transcendental grounds, and the dogma at first uttered in the flush of intelligent perception, with no scruple or self-consciousness, may be repeated after a thorough examination of heart, on the ground that it is the best possible expression of experience, the inevitable deliverance of thought. So approached, a dogmatic system will carry its critical justification with it, and the values it enshrines and secures will not be doubtful. The emotions it arouses will be those aroused by the experience it explains.

Causes having been found for what is given, these causes will be proved to have just that beneficent potency and just that distressing inadequacy which the joys and failures of life show that the reality has, whatever this reality may otherwise be. The theory will add nothing except the success involved in framing it. Life being once for all what it is, no physics can render it worse or better, save as the knowledge of physics, with insight into the causes of our varied fortunes, is itself an achievement and a new resource.

[Sidenote: Positive emotions proper to materialism.]

A theory is not an unemotional thing. If music can be full of pa.s.sion, merely by giving form to a single sense, how much more beauty or terror may not a vision be pregnant with which brings order and method into everything that we know. Materialism has its distinct aesthetic and emotional colour, though this may be strangely affected and even reversed by contrast with systems of an incongruous hue, jostling it accidentally in a confused and amphibious mind. If you are in the habit of believing in special providences, or of expecting to continue your romantic adventures in a second life, materialism will dash your hopes most unpleasantly, and you may think for a year or two that you have nothing left to live for. But a thorough materialist, one born to the faith and not half plunged into it by an unexpected christening in cold water, will be like the superb Democritus, a laughing philosopher. His delight in a mechanism that can fall into so many marvellous and beautiful shapes, and can generate so many exciting pa.s.sions, should be of the same intellectual quality as that which the visitor feels in a museum of natural history, where he views the myriad b.u.t.terflies in their cases, the flamingoes and sh.e.l.l-fish, the mammoths and gorillas.

Doubtless there were pangs in that incalculable life, but they were soon over; and how splendid meantime was the pageant, how infinitely interesting the universal interplay, and how foolish and inevitable those absolute little pa.s.sions. Somewhat of that sort might be the sentiment that materialism would arouse in a vigorous mind, active, joyful, impersonal, and in respect to private illusions not without a touch of scorn.

To the genuine sufferings of living creatures the ethics that accompanies materialism has never been insensible; on the contrary, like other merciful systems, it has trembled too much at pain and tended to withdraw the will ascetically, lest the will should be defeated.

Contempt for mortal sorrows is reserved for those who drive with hosannas the Juggernaut car of absolute optimism. But against evils born of pure vanity and self-deception, against the verbiage by which man persuades himself that he is the goal and acme of the universe, laughter is the proper defence. Laughter also has this subtle advantage, that it need not remain without an overtone of sympathy and brotherly understanding; as the laughter that greets Don Quixote's absurdities and misadventures does not mock the hero's intent. His ardour was admirable, but the world must be known before it can be reformed pertinently, and happiness, to be attained, must be placed in reason.

[Sidenote: The material world not dead nor ugly,]

Oblivious of Democritus, the unwilling materialists of our day have generally been awkwardly intellectual and quite incapable of laughter.

If they have felt anything, they have felt melancholy. Their allegiance and affection were still fixed on those mythical sentimental worlds which they saw to be illusory. The mechanical world they believed in could not please them, in spite of its extent and fertility. Giving rhetorical vent to their spleen and prejudice, they exaggerated nature's meagreness and mathematical dryness. When their imagination was chilled they spoke of nature, most unwarrantably, as dead, and when their judgment was heated they took the next step and called it unreal. A man is not blind, however, because every part of his body is not an eye, nor every muscle in his eye a nerve sensitive to light. Why, then, is nature dead, although it swarms with living organisms, if every part is not obviously animate? And why is the sun dark and cold, if it is bright and hot only to animal sensibility? This senseless lamentation is like the sophism of those Indian preachers who, to make men abandon the illusions of self-love, dilated on the shocking contents of the human body. Take off the skin, they cried, and you will discover nothing but loathsome bleeding and quivering substances. Yet the inner organs are well enough in their place and doubtless pleasing to the microbes that inhabit them; and a man is not hideous because his cross-section would not offer the features of a beautiful countenance. So the structure of the world is not therefore barren or odious because, if you removed its natural outer aspect and effects, it would not make an interesting landscape. Beauty being an appearance and life an operation, that is surely beautiful and living which so operates and so appears as to manifest those qualities.

[Sidenote: nor especially cruel.]

It is true that materialism prophesies an ultimate extinction for man and all his works. The horror which this prospect inspires in the natural man might be mitigated by reflection; but, granting the horror, is it something introduced by mechanical theories and not present in experience itself? Are human things inwardly stable? Do they belong to the eternal in any sense in which the operation of material forces can touch their immortality? The panic which seems to seize some minds at the thought of a merely natural existence is something truly hysterical; and yet one wonders why ultimate peace should seem so intolerable to people who not so many years ago found a stern religious satisfaction in consigning almost the whole human race to perpetual torture, the Creator, as Saint Augustine tells us, having in his infinite wisdom and justice devised a special kind of material fire that might avail to burn resurrected bodies for ever without consuming them.

A very real truth might be read into this savage symbol, if we understood it to express the ultimate defeats and fruitless agonies that pursue human folly; and so we might find that it gave mythical expression to just that conditioned fortune and inexorable flux which a mechanical philosophy shows us the grounds of. Our own vices in another man seem particularly hideous; and so those actual evils which we take for granted when incorporated in the current system strike us afresh when we see them in a new setting. But it is not mechanical science that introduced mutability into things nor materialism that invented death.

[Sidenote: Mechanism to be judged by its fruits.]

The death of individuals, as we observe daily in nature, does not prevent the reappearance of life; and if we choose to indulge in arbitrary judgments on a subject where data fail us, we may as reasonably wish that there might be less life as that there might be more. The pa.s.sion for a large and permanent population in the universe is not obviously rational; at a great distance a man must view everything, including himself, under the form of eternity, and when life is so viewed its length or its diffusion becomes a point of little importance. What matters then is quality. The reasonable and humane demand to make of the world is that such creatures as exist should not be unhappy and that life, whatever its quant.i.ty, should have a quality that may justify it in its own eyes. This just demand, made by conscience and not by an arbitrary fancy, the world described by mechanism does not fulfil altogether, for adjustments in it are tentative, and much friction must precede and follow upon any vital equilibrium attained. This imperfection, however, is actual, and no theory can overcome it except by verbal fallacies and scarcely deceptive euphemisms. What mechanism involves in this respect is exactly what we find: a tentative appearance of life in many quarters, its disappearance in some, and its reinforcement and propagation in others, where the physical equilibrium attained insures to it a natural stability and a natural prosperity.

CHAPTER IV

HESITATIONS IN METHOD

[Sidenote: Mechanism restricted to one-half of existence.]

When Democritus proclaimed the sovereignty of mechanism, he did so in the oracular fas.h.i.+on proper to an ancient sage. He found it no harder to apply his atomic theory to the mind and to the G.o.ds than to solids and fluids. It sufficed to conceive that such an explanation might be possible, and to ill.u.s.trate the theory by a few scattered facts and trenchant hypotheses. When Descartes, after twenty centuries of verbal physics, reintroduced mechanism into philosophy, he made a striking modification in its claims. He divided existence into two independent regions, and it was only in one, in the realm of extended things, that mechanism was expected to prevail. Mental facts, which he approached from the side of abstracted reflection and Platonic ideas, seemed to him obviously non-extended, even when they represented extension; and with them mechanism could have nothing to do. Descartes had recovered in the science of mechanics a firm nucleus for physical theory, a stronghold from which it had become impossible to dislodge scientific methods.

There, at any rate, form, ma.s.s, distance, and other mathematical relations governed the transformation of things. Yet the very clearness and exhaustiveness of this mechanical method, as applied to gross ma.s.ses in motion, made it seem essentially inapplicable to anything else.

Descartes was far too radical and incisive a thinker, however, not to feel that it must apply throughout nature. Imaginative difficulties due to the complexity of animal bodies could not cloud his rational insight.

Animal bodies, then, were mere machines, cleancut and cold engines like so many anatomical manikins. They explained themselves and all their operations, talking and building temples being just as truly a matter of physics as the revolution of the sky. But the soul had dropped out, and Descartes was the last man to ignore the soul. There had dropped out also the secondary qualities of matter, all those qualities, namely, which are negligible in mechanical calculations. Mechanism was in truth far from universal; all mental facts and half the properties of matter, as matter is revealed to man, came into being without asking leave; they were interlopers in the intelligible universe. Indeed, Descartes was willing to admit that these inexplicable bystanders might sometimes put their finger in the pie, and stir the material world judiciously so as to give it a new direction, although without adding to its substance or to its force.

The Life of Reason Part 52

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