The Life of Reason by George Santayana (i have read the book TXT) π
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- Author: George Santayana
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A consequence of this incoherence in experience is that science is not absolutely single but springs up in various places at once, as a certain consistency or method becomes visible in this or that direction. These independent sciences might, conceivably, never meet at all; each might work out an entirely different aspect of things and cross the other, as it were, at a different level. This actually happens, for instance, in mathematics as compared with history or psychology, and in morals as compared with physics. Nevertheless, the fact that these various sciences are all human, and that here, for instance, we are able to mention them in one breath and to compare their natures, is proof that their spheres touch somehow, even if only peripherally. Since common knowledge, which knows of them all, is itself an incipient science, we may be sure that some continuity and some congruity obtains between their provinces. Some aspect of each must coincide with some aspect of some other, else nobody who pursued any one science would so much as suspect the existence of the rest. Great as may be the aversion of learned men to one another, and comprehensive as may be their ignorance, they are not positively compelled to live in solitary confinement, and the key of their prison cells is at least in their own pocket.
Some sciences, like chemistry and biology, or biology and anthropology, are parted only, we presume, by accidental gaps in human knowledge; a more minute and better directed study of these fields would doubtless disclose their continuity with the fields adjoining. But there is one general division in science which cuts almost to the roots of human experience. Human understanding has used from the beginning a double method of surveying and arresting ideally the irreparable flux of being. One expedient has been to notice and identify similarities of character, recurrent types, in the phenomena that pass before it or in its own operations; the other expedient has been to note and combine in one complex object characters which occur and reappear together. The latter feat which is made easy by the fact that when various senses are stimulated at once the inward instinctive reactionβwhich is felt by a primitive mind more powerfully than any external imageβis one and not consciously divisible.
The first expedient imposes on the flux what we call ideas, which are concretions in discourse, terms employed in thought and language. The second expedient separates the same flux into what we call things, which are concretions in existence, complexes of qualities subsisting in space and time, having definable dynamic relations there and a traceable history. Carrying out this primitive diversity in reflection science has moved in two different directions. By refining concretions in discourse it has attained to mathematics, logic, and the dialectical developments of ethics; by tracing concretions in existence it has reached the various natural and historical sciences. Following ancient usage, I shall take the liberty of calling the whole group of sciences which elaborates ideas dialectic, and the whole group that describes existences physics.
The contrast between ideal science or dialectic and natural science or physics is as great as the understanding of a single experience could well afford; yet the two kinds of science are far from independent. They touch at their basis and they co-operate in their results. Were dialectic made clearer or physics deeper than it commonly is, these points of contact would doubtless be multiplied; but even as they stand they furnish a sufficient illustration of the principle that all science develops objects in their own category and gives the mind dominion over the flux of matter by discovering its form.
That physics and dialectic touch at their basis may be shown by a double analysis. In the first place, it is clear that the science of existence, like all science, is itself discourse, and that before concretions in existence can be discovered, and groups of coexistent qualities can be recognised, these qualities themselves must be arrested by the mind, noted, and identified in their recurrences. But these terms, bandied about in scientific discourse, are so many essences and pure ideas: so that the inmost texture of natural science is logical, and the whole force of any observation made upon the outer world lies in the constancy and mutual relations of the terms it is made in. If down did not mean down and motion motion, Newton could never have taken note of the fall of his apple. Now the constancy and relation of meanings is something meant, it is something created by insight and intent and is altogether dialectical; so that the science of existence is a portion of the art of discourse.
On the other hand discourse, in its operation, is a part of existence. That truth or logical cogency is not itself an existence can be proved dialectically,[A] and is obvious to any one who sees for a moment what truth means, especially if he remembers at the same time that all existence is mutable, which it is the essence of truth not to be. But the knowledge or discovery of truth is an event in time, an incident in the flux of existence, and therefore a matter for natural science to study.
Furthermore, every term which dialectic uses is originally given embodied; in other words, it is given as an element in the actual flux, it conies by illustration. Though meaning is the object of an ideal function, and signification is inwardly appreciable only in terms of signification, yet the ideal leap is made from a material datum: that in which signification is seen is a fact. Or to state the matter somewhat differently, truth is not self-generating; if it were it would be a falsehood.
Its eternity, and the infinitude of propositions it contains, remain potential and unapproachable until their incidence is found in existence. Form cannot of itself decide which of all possible forms shall be real; in their ideality, and without reference to their illustration in things, all consistent propositions would be equally valid and equally trivial. Important truth is truth about something, not truth about truth; and although a single datum might suffice to give foothold and pertinence to an infinity of truths, as one atom would posit all geometry, geometry, if there were no space, would be, if I may say so, all of the fourth dimension, and arithmetic, if there were no pulses or chasms in being, would be all algebra. Truth depends upon facts for its perspective, since facts select truths and decide which truths shall be mere possibilities and which shall be the eternal forms of actual things. The dialectical world would be a trackless desert if the existent world had no arbitrary constitution. Living dialectic comes to clarify existence; it turns into meanings the actual forms of things by reflecting upon them, and by making them intended subjects of discourse.
Dialectic and physics, thus united at their basis, meet again in their results. In mechanical science, which is the best part of physics, mathematics, which is the best part of dialectic, plays a predominant rΓ΄le; it furnishes the whole method of understanding wherever there is any real understanding at all. In psychology and history, too, although dialectic is soon choked by the cross-currents of nature, it furnishes the little perspicuousness which there is. We understand actions and mental developments when the purposes or ideas contained in any stage are carried out logically in the sequel; it is when conduct and growth are rational, that is, when they are dialectical, that we think we have found the true secret and significance of them. It is the evident ideal of physics, in every department, to attain such an insight into causes that the effects actually given may be thence deduced; and deduction is another name for dialectic. To be sure, the dialectic applicable to material processes and to human life is one in which the terms and the categories needed are still exceedingly numerous and vague: a little logic is all that can be read into the cataract of events. But the hope of science, a hope which is supported by every success it scores, is that a simpler law than has yet been discovered will be found to connect units subtler than those yet known; and that in these finer terms the universal mechanism may be exhaustively rendered. Mechanism is the ideal of physics, because it is the infusion of a maximum of mathematical necessity into the flux of real things. It is the aspiration of natural science to be as dialectical as possible, and thus, in their ideal, both branches of science are brought together.
That the ideal of dialectic is to apply to existence and thereby to coincide with physics is in a sense no less true, although dialecticians may be little inclined to confess it. The direct purpose of deduction is to elucidate an idea, to develop an import, and nothing can be more irrelevant in this science than whether the conclusion is verified in nature or not. But the direct purpose of dialectic is not its ultimate justification. Dialectic is a human pursuit and has, at bottom, a moral function; otherwise, at bottom, it would have no value. And the moral function and ultimate justification of dialectic is to further the Life of Reason, in which human thought has the maximum practical validity, and may enjoy in consequence the richest ideal development. If dialectic takes a turn which makes it inapplicable in physics, which makes it worthless for mastering experience, it loses all its dignity: for abstract cogency has no dignity if the subject-matter into which it is introduced is trivial. In fact, were dialectic a game in which the counters were not actual data and the conclusions were not possible principles for understanding existence, it would not be a science at all. It would resemble a counterfeit paper currency, without intrinsic value and without commercial convenience. Just as a fact without implications is not a part of science, so a method without application would not be.
The free excursions of dialectic into non-natural regions may be wisely encouraged when they satisfy an interest which is at bottom healthy and may, at least indirectly, bring with it excellent fruits. As musicians are an honour to society, so are dialecticians that have a single heart and an exquisite patience. But somehow the benefit must redound to society and to practical knowledge, or these abstracted hermits will seem at first useless and at last mad. The logic of nonsense has a subtle charm only because it can so easily be turned into the logic of common sense. Empty dialectic is, as it were, the ballet of science: it runs most neatly after nothing at all.
Both physics and dialectic are contained in common knowledge, and when carried further than men carry them daily life these sciences remain essentially inevitable and essentially fallible. If science deserves respect, it is not for being oracular but for being useful and delightful, as seeing is. Understanding is nothing but seeing under and seeing far. There is indeed a great mystery in knowledge, but this mystery is present in the simplest memory or presumption. The sciences have nothing to supply more fundamental than vulgar thinking or, as it were, preliminary to it. They are simply elaborations of it; they accept its pre-suppositions and carry on its ordinary processes. A pretence on
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