The Renaissance and naturalism. Bacon.
This realist, mystical and dialectical current of thought was destined to yield its best fruits some centuries later. For the time being, in the seventeenth century, and yet more in the century that followed, the victory seemed to rest with nominalism, that is to say, with naturalism. In Italy, Leonardo da Vinci laughed at theological and speculative disputes and celebrated, not the mind, but theeyeof man, that is, the science of observation. The same tendency appeared in the anti-Aristotelians and naturalists, who placed the natural sciences above scholasticism. In England, the other Bacon, however slight his importance both as philosopher and naturalist, yet has much importance as the symptom and spokesman of the self-assertion of naturalism. In theNovum Organum,the universal of thefor the most partclaims its rights as against the universal of the necessary and eternal. He does not wish, however, to do away with the latter, but rather to complete it; the syllogism is insufficient, induction also is needed. Philosophy and theology are well where they are, but ascience of physics is also needed; philosophic induction, which goes at a leap to first causes, must be accompanied by a gradual induction (the only one that interests the naturalist), which connects particular facts by means of laws more and more general; final causes must be banished from the study of nature, and only efficient causes admitted.Anticipationes naturae,that is to say, the invasions of philosophism into the natural sciences, are to be prohibited. These utterances are far more discreet than those that have so often since been heard.
The ideal of exact science and the Cartesian philosophy.
By another school of this period, on the other hand, the pure concept was wrongly identified with the abstract concept. Thus speculative rationalism took the form of mathematical rationalism and the ideal of philosophy was confused with the ideal ofexact science.This tendency is also to be found in Leonardo, who exalted "reason" alone, that is calculation, as outside of and sometimes superior to experience. Galileo expressed similar thoughts later. The Cartesian philosophy is animated with it, that is to say, the philosophy of Descartes and of his great followers, especially Spinoza and Leibnitz. Thus this is especially an intellectualist philosophy, full of empty excogitations and rigiddivisions, developed by a mechanical or by a teleological method, which always operated by means of mechanism. It is true that even under these improper forms, philosophic thought progressed. The consciousness of the inner unity of philosophy progressed with Descartes, that of the unity of the real by means of Spinoza's concept of substance, and that of spiritual activity by means of the dynamism of Leibnitz; but Logic remained as a whole the old scholastic logic. The purity of the concept was asserted at the expense of concreteness; thus the concept, in the Logic of those writers, is always something abstract, although its reality is so far recognized that it is thought possible to think with it the most real (the God of Descartes, the substance of Spinoza, the Monad of Leibnitz). The eighteenth century, mathematical, abstractionist, intellectualist ratiocinative, anti-historical, illuminist, reformist, and finally Jacobin, is the legitimate issue of this Cartesian philosophy, which confuses the Logic of philosophy with the Logic of mathematics. France, which was the country of its birth and where it became most firmly rooted and most widely disseminated, owes to it, perhaps even more than to Scholasticism, the mental imprint whichit still bears and which the strong Germanic influence that has made itself felt there also in the last century has not sufficed to eradicate. It is only in our day that the country which is the type of the abstract intellect strives to become philosophically more concrete. It is now occupied with æstheticism or intuitionism, and, unless the movement is suffocated or dissipated, it may effect a true revolution in the traditional French spirit.
Adversaries of Cartesianism. Vico.
The opposition to abstractionism had no representatives in the seventeenth century and for a great part of the eighteenth, except among thinkers of but slight systematic powers, with whom it did not progress beyond the logical form of the presentiment and the literary form of the aphorism. In France, Blaise Pascal was one of these, with his anti-Cartesianism, his restriction of the value of mathematics, and his celebration of the reasons of the heart which reason does not know. In Germany there was Hamann, who possessed such a strong sense of tradition, of history, of language, of poetry and of myth, and finally of the truth contained in the principle of thecoincidence of oppositeswhich he had met with somewhere in Bruno. The Italian Giambattista Vico was the only great systematicthinker to express opposition to abstractionism and Cartesianism. Prior to and more clearly than Hamann, he perceived the unity of philosophy and history, or as he called it, ofphilosophy and philology.He conceived thought as anideal historyof reality, immanent in the real history which occurs in time; he abolished the distinctions of the concept as separate species and substituted the notion of degrees or moments, which (as Schelling did after him) he calledideal epochs; he considered the abstractionist and mathematical century which he saw rising before him, as a period of philosophic decadence, and foretold the evil effects of Cartesian anti-historicism. (His presage was fulfilled.) In this way, he sketched a new Logic, very different from that of Aristotle or of Arnaud which was the most recent, a Logic in which he attempted to satisfy Plato and Bacon, Tacitus and Grotius, the idea and the fact. But if the other opponents of abstractionism had very little effect, because of their immaturity and want of system, Vico also was ineffectual, because he was born in Italy precisely at the time when Italy as a productive country was definitely issuing from the circle of European thought and was beginning passively to accept the more popular forms of foreignthought. Finally, Naples, the little country of Vico, was then becoming encyclopædist and sensationalist, and did not really begin to know until a century later the remedy for such evils composed in anticipation by Vico.
Empiricist Logic and its dissolution—Locke, Berkeley and Hume.
The surpassing of the Logic of the abstract concept and the achievement of that of the concrete concept or pure concept or idea, was realized in other ways, primarily by a sort of reduction to the absurd of empiricist and mathematical Logic, in the scepticism which was its result. This reduction to the absurd, this final scepticism, is to be observed in the movement of English philosophy, beginning with Locke or even with Hobbes, to Hume. Locke, starting from perception as his presupposition, derived all ideas from experience, with the sole instrument of reflection; and rejecting innate ideas and looking upon others as more or less arbitrary, he preserved some objectivity to mathematical ideas alone, which relate to what are called primary qualities. Berkeley denies objectivity even to the primary qualities. All concepts, naturalist and mathematical alike, are for him abstract concepts and to that extent without truth. The only truth is the "idea," which means here nothing but sensation or the representation of the individual. His Logic is notempiricist, because it is in no respect Logic. At the most it is an Æsthetic substituted for and given as Logic. It is true, notwithstanding his complete denial of universals—of empirical and abstract, no less than of philosophic, which he never even mentions—that he deludes himself into thinking that he has overcome scepticism; and it is true also that he laid the foundations of a spiritualist and voluntarist conception of reality, which in our opinion should be preserved and adopted by modern thought. But this proves only that his philosophy does not wholly agree with his Logic, and not that his Logic is not the complete denial of the concept and of thought. The logical consequence of Berkeley could not, then, be anything but the scepticism of David Hume, who shakes the very foundation upon which the whole of the science of nature rests, namely, the principle of causality.
Exact science and Kant. The concept of the category.
As the effect of this extreme scepticism, the surpassing of empiricist and abstractionist Logic had to be begun with the restoration of that Logic itself (because that which does not exist cannot be surpassed), that is to say, with the demonstration, against Hume, that the exact science of nature is possible. Such is the principal task of theCritique of Pure Reason,which contains the Logic of the natural and mathematical sciences, thought no longer by an empiricist, but by a philosopher who has surpassed empiricism and recognized that the concepts of experience presuppose the human intellect, which originally constructed them. Leibnitz had already travelled this road, when in a polemic against Locke he maintained that reflection to which Locke appealed, referred back to the innate ideas: for if reflection (he said) is nothing but "une attention à ce qui est en nous et les sens ne nous donnent point ce que nous portons déjà avec nous," how can it ever be denied "qu'il y est beaucoup d'inné en nous, puisque nous sommes, pour ainsi dire, innés à nous mêmes? Peut-on nier qu'il y ait eu nous être, unité, substance, durée, changement, action, perception, plaisir et mille autres objets de nos idées intellectuelles?"[13]TheNew Essays,in which theses and other similar themes were developed, remained for a time unedited, but appeared opportunely in 1765 to fecundate German thought, and acted upon Kant, together with English empiricism and scepticism, the latter giving the problem and the former almost an attempt at a solution. But the innate ideas of Leibnitz are profoundlytransformed in the Kantian concept of thecategory,which is the formal element and really exists only in the very act of judgment, which it effects. Mathematics are thus secured in their possession, no longer by means of the primary qualities of Locke, but because they arise from thea prioriforms of intuition, space and time. The natural sciences are also secured, because the concepts of them are constituted by means of the categories of the intellect, on the data of experience. In other words, mathematical and natural science have value, in so far as they are a necessary product of the spirit.
The limits of science and Kantian scepticism.
But a limitation of value due also to Kant, accompanies this theoretic reinforcement of exact science. That science is necessary, because produced by the categories; but the categories cannot develop their activity except upon the data of experience; so that exact science is limited to experience, and whenever it makes the attempt to surpass it, it becomes involved in antinomies and paralogisms and gesticulates in the void. Science moves among phenomena and can never penetrate beyond them and attain to the "Thing in itself."
The limits cf science and Jacobi.
It would seem from this that Kant was bound to end in a renovated nominalism and mysticism,and indeed such is partly the case. Contemporaneously with him, Jacobi also observed the limit in which is enclosed the mechanical and determinist science of nature (the highest philosophic expression of which was then found in theEthicof Spinoza), since it works with the principle of causation and is impotent, unless it wishes to commit suicide, to leave the finite which it describes in a causal series, and Jacobi concluded in favour of mysticism and offeeling,the organ of the Knowledge of God. Kant, like Jacobi, in his turn has recourse to the non-theoretic form of the spirit, to the practical reason and its postulates, to provide that certitude of God, of immortality, and of human freedom, which is not evident to the theoretic reason. But in Kant there are other positive elements which are not in Jacobi, and these elements, although not sufficiently elaborated by him and not harmonized with one another, confer upon his philosophy the value of a new Logic, more or less sketched. For he recognizes not only a theoretic but also a practical reason, which cannot be called simply practical, if it in any way produce (although only under the title of postulates), knowledge (and knowledge of supreme importance). He recognises also an æsthetic judgment, which, although developedwithout concepts, does not belong to the sphere of practical interests; and a teleological judgment, which is regulative and not constitutive, but not on this account arbitrary or without meaning. Finally, the very contradictions, in which the intellect becomes involved, when it wishes to apply the categories beyond experience, could not reasonably be considered by him to be mere errors, because they constitute serious problems, if the intellect becomes involved in them, not capriciously, but ofnecessity.All this presages the coming of a new Logic, which shall set in their places these scattered elements of truth and solve the contradictions.
The a priori synthesis.
But the Kantian philosophy also contains, in addition to these elements and these stimulations, the concept of the new Logic in thea priorisynthesis. This synthesis is the unity of the necessary and the contingent, of concept and intuition, of thought and representation, and consequently is the pure concept, theconcreteuniversal.
The intimate contradiction of Kant. Romantic principle and classical execution.
Kant was not aware of this; and instead of developing with a mind free from prejudice the thought of his genius, he also allowed himself to be vanquished by the abstractionism of his time and out of the logical and philosophicala priorisynthesis he made the more or less arbitrarya priorisynthesis of the sciences. In this way, the apriority of the intuition led him, not to art, but to mathematics (transcendental Æsthetic)[14]the apriority of the intellect led him, not to Philosophy, but to Physics (abstract intellect): hence the impotence which afflicted that synthesis, when confronted with philosophic problems. When he discovered thea priorisynthesis, Kant had laid his hand upon a profoundlyromanticconcept; but his treatment of it became afterwardsclassicistandintellectualist.The synthesis is the palpitating reality which makes itself and knows itself in the making: the Kantian philosophy makes it rigid again in the concepts of the sciences; and it is a philosophy in which the sense of life, of imagination, of individuality, of history, is almost as completely absent as in the great systems of the Cartesian period. Whoever is not aware of this intimate drama and fails to understand this contradiction; whoever, when confronted with the work of Kant, is not seized with the need, either of going forward or of going backward, has not reached the heart of that soul, the centre of that mind. The old philosophers who condemnedKant as sceptical and as a corrupter of philosophy, and who confined themselves strictly to Wolfianism and to scholasticism, and the new who greeted him as a precursor and made of him a stepping-stone on which to mount higher,—these alone came truly into contact with Kant's philosophy. For in his case there are but two alternatives: abhorrence or attraction, loathing or love. In the midst of a battle one must flee or fight: to sit still and take one's ease is the attitude of the unconscious and the mad. Certainly it is better to fight than to flee, but it is better to flee than to sit inactive. He who flees, saves at least his own skin, or, to abandon metaphor, saves the old philosophy, which is still something; but the inactive man loses both life and glory, the old philosophy and the new.
Advance upon Kant: Fichte, Schelling, Hegel.
The new philosophy was that of the three great post-Kantians, Fichte, Schelling and Hegel. With Fichte, all trace of the thing in itself has disappeared and the dominating concept is that of the Ego, that is, of the Spirit, which creates the world by means of the transcendental imagination and recreates it in thought. In Schelling is found the concept of the Absolute, the unity of subject and object, which has, as its instrument, intellectual intuition. In Hegel,there is this same concept, but it has itself as instrument, that is to say, it is truly logical. All three are Kantians, but all three (and especially the last two) are not simply Kantian. They employed elements which Kant ignored or employed timidly, and in particular the mystical tradition and the new tendencies of æsthetic and historical thought. Thus they pass beyond the abstractionism and intellectualism of the Kantian period, and inaugurate the nineteenth century. They are connected ideally with Vico (Hamann was the little German Vico), and they enrich him with the thoughts of Kant.
The Logic of Hegel. The concrete concept or Idea.
Neglecting the particular differences between these thinkers and the genetic process by which we pass from one to the other, and taking the result of that speculative movement in its most mature form, which is the philosophy of Hegel, we see in it (like a new, securely established society after the frequent changes of a revolution) the establishment of the new doctrine of the concept. Kant's unconsciousness of the consequences of thea priorisynthesis had been such that he had not hesitated to affirm that Logic, since the time of Aristotle, had possessed so just and secure a form as not to need to take one single step backward, and to be unable to takeone forward.[15]But Hegel insisted that this was rather a sign that that science demanded complete re-elaboration, since an application of two thousand years should have endowed the spirit with a more lofty consciousness of its own thought and of its own essential nature.[16]What was the concept for Hegel? It was not that of the empirical sciences, which consists in a simple general representation and therefore always in something finite; it is barbaric to give the name concepts to intellectual formations, like "blue," "house," or "animal." Nor was it the mathematical concept, which is an arbitrary construction. All the logical rationality that there is in mathematics is what is called irrational. These so-called concepts are the products of the abstract intellect; the true concept is the product of the concrete intellect, or reason. It has therefore nothing to do with the immediate knowledge of the sentimentalists and of the mystics, and with the intuition of the æstheticists; such formulae as these express the necessity for the concept, but give only a negative determination of it. They assert what it is not in relation to the empirical sciences and then misstate what it is in philosophy. For therest, the shortcomings of the abstract intellect, generating the pure void orthing in itself(which far from being, as Kant believed, unknowable, is indeed the best known thing of all, the abstraction from everything and from thought itself) prepare the environment for the phantasms and caprices of mysticism and intuitionism. The true concept is theidea,and the idea is the absolute unity of the concept and of its objectivity.
Identity of the Hegelian Idea with the Kantian a priori synthesis.
This definition has sometimes seemed whimsical, sometimes most obscure; yet it presents nothing but the elaboration in a more rigorous form of the Kantiana priorisynthesis, so that these two terms could without further difficulty be regarded as equivalent; thea priorilogical synthesis is the Idea and the Idea is thea priorilogical synthesis. If Hegel has not been understood, that is due to the fact that Kant himself has not been understood. Those who assert that they understand what Kant meant to say, but not what Hegel meant to say, deceive themselves. For Kant and Hegel say the same thing, though the latter says it with greater consciousness and clearness, that is to say, better.[17]
The Idea and the Antinomies. The Dialectic.
The idea, the concrete universal, the pure concept, rebels against the mechanical divisions employed for the empirical concepts. For it has its own division, its own proper and intimate rhythm, by means of which it divides and unifies, and unifies itself when dividing and divides itself when unifying. The concept thinks reality, which is not immobile but in motion, not abstract being, but becoming; and therefore in it distinctions are generated one from another and oppositions reconciled. Hegel not only gives the true meaning of the Kantiana priorisynthesis, recognizing it as the concrete concept, but replaces the antinomies in its bosom. The contradiction is not due to the limitation of thought before a non-contradictory reality, which thought is unable to attain; it is the characterof reality itself, which contradicts itself in itself, and is opposition,coincidentia oppositorum,the synthesis of opposites, or dialectic. A new doctrine of opposites and the outlines of a new doctrine of distinction accompanies the new doctrine of the pure concept. In this philosophy is truly summarized all the previous history of thought. The concept of Socrates has acquired the reality of the idea of Plato, the concreteness of the substance of Aristotle, the unity-in-opposition of Cusanus and Bruno, the Vichian reconciliation of philosophy and philology, the unity-in-distinction of the Kantian synthesis and the æsthetic suppleness of Schelling's intellectual intuition.
The lacunæ and errors of the Hegelian Logic. Their consequences.
Nevertheless, the history of thought does not stop at Hegel. In Hegel himself are found the points to which later history must attach itself; the lacunæ which he left and the errors into which he fell. The fundamental error was the abuse of the dialectic method, which originated for the philosophic solution of the problem of opposites, but was extended by Hegel to the distinct concepts, so that he interpreted even the Kantian synthesis itself as nothing but the unity of opposites. Hence arises his incapacity to attribute their true value and function to thealogical forms of the spirit, such as art, and to the atheoretic, such as the natural sciences and mathematics; and even to logical thought itself, which, violating the laws of the synthesis, ended by imposing itself upon history and the natural sciences, attempting to resolve them into itself by dialectizing them, as the philosophy of history and the philosophy of nature. To this, therefore, is due the philosophism or panlogism which is characteristic of the system. This error was assisted by Hegel's want of clearness as to the nature of the empirical sciences. For him as for Kant, these remainedsciences,that is to say, knowledge of truth, although imperfect knowledge of it. They therefore constituted even for him the material or the first step in philosophy. It is true that he also had other more acute and profound thoughts upon this subject. Amid a number of incidental observations, he emphasized the arbitrariness (Willkurlichkeit), with which those forms are affected; and this is tantamount to declaring their practical and atheoretic character. But instead of respecting this character, he decided upon surpassing it by means of a philosophic transformation of those sciences, which was not so much their death as pretended philosophies (a most true conclusion),as their elevation to the rank of particular philosophies by means of a mixture of empirical concepts and pure concepts, of abstract intellect and of reason. The erroneous tendency found nourishment and took concrete form in the idea of a Philosophy of nature, which Schelling had obtained, partly from Kant himself and partly had found in his own at first latent and then manifest theosophism. In this way, the system of Hegel became divided into three parts, a Logic-metaphysic, a Philosophy of nature and a Philosophy of Spirit, whereas it should on the contrary have unified Logic and the Philosophy of Spirit, and expelled the Philosophy of nature. By its internal dialectic, panlogism or philosophism was converted, even in Hegel himself, and still more among his disciples, into mythologism, and from the system of the Idea and of absolute immanence, because of the imperfections which they contained, there reappeared theism and transcendence (the Hegelian right wing).[18]
Contemporaries of Hegel: Herbart, Schleiermacher, and others.
It would be vain to seek the correction of Hegel among those thinkers that were his contemporaries, for they were all, though in various degrees, inferior to him. None of them hadattained, through Kant, to the height attained by Hegel. Dwelling on a lower level, they could certainly refuse to recognize him and vituperate him, but they could never collaborate with and beyond him, in the progress of truth. Herbart held those concepts to which the particular sciences give rise to be contradictory, but he claimed to surpass the contradiction by means of an elaboration of the concepts (Bearbeitung der Begriffe), conducted in the very method of the old Logic, that is, of the Logic of the empirical sciences. Schleiermacher renounced the attempt to reach the unity of the speculative and the empirical, of Ethic and Physics, that is, the realization of the pure idea of knowledge; and he substituted for that ideal, which for him was unattainable,criticism,a form of worldly wisdom; that is to say, of philosophy (Weltweisheit) which gave access to theology and to religious feeling.[19]Schopenhauer accepted the distinction between concept and idea, the first abstract and artificial, the second concrete and real; but so slight was his understanding of the idea (which he called the Platonic idea) that he confused it with the concept of natural species,[20]that is to say,precisely with one of the most artificial and arbitrary of empirical concepts. Finally, Schelling, who had been a precursor of Hegel in his youth and had collaborated with him, not only failed to improve his logic of the intuition in his second philosophical period, but he abandoned even this embryonic form of the concrete concept, and gave himself over as a prey to the will and to irrationality. In his positive philosophy the old adversary of Jacobi made a bad combination of the alogism of Jacobi with the Hegelian idea of development and with mythologism, as in metaphysic he had anticipated the blind will of Schopenhauer.[21]
Later positivism and psychologism.
The ensuing period, both in Germany and in the whole of Europe, had little philosophical interest. It was marked by the reappearance of a form of naturalism and of Empiricism, in partjustified by the abuse of the dialectic, which had sometimes, in the hands of Hegel's disciples, seemed altogether mad. But this recrudescence was in every way very poor in thought and inadequate to previous history. With this Empiricism is associated the deplorableLogicof John Stuart Mill, one of those books which do least honour to the human spirit. That less than mediocre reasoner did not even succeed in producing a Logic of the natural sciences. He became involved in contradictions and tautologies, talking, for instance, of experience, which criticises itself and imposes its own limits upon itself, and of the principle of causality, as a law which affirms the existence of a law that there shall be a law. Still less had he any notion of what it is to philosophize, maintaining that in order to make progress in the moral and philosophical sciences it is necessary to apply to them the method of the physical sciences. Nothing ismore puerile than his nominalism, which gives language a logical character, and then pretends that language must be logically reformed. Logical science was altogether lost in the evolutionism or physiologism of Spencer, and in the psychologism which had and still has many followers in Germany, in France, and in England, not less than in Italy. The state in which the Logic of philosophy is found in such an environment can be inferred from the fact that even mathematical Logic fared ill there, since there have not been wanting those who have dared to conceive apsychology of arithmetic.Finally, as a healthy corrective of psychologism, the danger of which to the old Logic had already been noted by Kant,[22]there came the revival of the Aristotelian, and even of the scholastic Logic, in which there yet lived, though in erroneous forms, the idea of the universal which had been discovered by the Greek philosophers.
Eclectics. Lotze.
Other thinkers have not abandoned all contact with classical German philosophy; but, in comparison with the thoughts of Kant and of Kant's great pupils, they seem like children. They try to lift the weapons of the Titans, and either they do not move them at all or they let them fallfrom their hands, wounding themselves with them, but failing to grip them. The thoughts of Schelling and of Hegel indeed were discredited, but not touched; and those of Kant were touched, but ill-treated. In the most esteemed Logics of this description, such as those of Sigwart and of Wundt, the capital distinction between pure concepts and representative concepts, betweenuniversaliaandgeneralia,has no prominence at all. Sigwart is obliged to complete the knowledge obtained from naturalistic and mathematical procedure by faith and by a gradual elevation to the idea of God. Wundt, who does not attribute to philosophy a method which is proper to it and different from that of the other forms of knowledge, conceives the final result of metaphysical thought as the position of a perpetual hypothesis. In the Logic of Lotze, who combated Hegelianism and revived transcendentalism and theism, there is just a luminous streak, a faint trace, of the idealist philosophy. Lotze understands that it is impossible to form (empirical) concepts by simply cancelling the varying parts of representations and preserving the constant parts, and recognizes that the formation of concepts presupposes the concept: the universal is made with the universal. He strives to issue fromthis circle by positing aprimaryuniversal, not formed by the method of the others, but such that thought finds it in itself. This primary universal has nothing particular and representative; and only by means of it is it possible to combine heterogeneous and to differentiate homogeneous elements, and to form the ideas of size, of more or less, of one and of many and such like, with which theseconduniversals of the synthesis are afterwards constructed.[23]
New gnoseology of Science. The Economic theory of the scientific concept.
While students of philosophy, although manifesting some doubt and dissatisfaction, allowed themselves to be intimidated by naturalism (dazzled, like the public, with technical applications, or confounded by the applause of the public), a tendency has become more and more accentuated during the last decades, which seems to us to offer great assistance to Logic and philosophy in general, if it is understood how to adapt it to its true end. It has not had any single centre of diffusion, but has arisen, almost contemporaneously, in several places, becoming at once diffused everywhere, like something that has happened at the right time. Several of its founders and promoters are mathematicians, physicists, and naturalists. From the very factof their having begun to reflect upon their activity, these men have certainly ceased to be mere specialists, notwithstanding their protests to the contrary. Yet they obtain considerable strength from their specialism, finding in it a guide and a curb to prevent their losing sight in their gnoseological enquiry of the actual procedure of naturalistic constructions, which are its origin. The formula of this tendency is the recognition of thepractical or economiccharacter of the mathematical, physical, and natural sciences.
Avenarius, Mach.
The empirocriticism of Avenarius considers science to be a simple description of the forms of experience, and conceptual procedure to be the instrument that alters pure and primitive experience (pure intuition or pure perception) for the purpose of simplifying it. Ernest Mach has developed and popularized these views, for as a student of mechanics he had reached the same conclusions by his own path and in his own way. The physical sciences (he says), not less than zoology and botany, have as their sole foundation the description of natural facts in which there are never identical cases. Identical cases are created by means of the schematic imitation that we make of reality; and here toelies the origin of the mutual dependence that appears in the character of facts. To this therefore he restricts the significance of the principle of causality, for which (in order to avoid fancifulness and mythologicism) it would be opportune to substitute the concept offunction.Bodies or things are abbreviated intellectualsymbolsof groups of sensations; symbols, that is to say, which have no existence outside our intellect. They are cards, like those which dealers attach to boxes and which have no value except in so far as there are goods of value inside the box. In this economic schematicism lies the strength, but also the weakness, of science; for in the presentation of facts science always sacrifices something of their individuality and real appearance, and does not seek exactness in another way save when obliged to do so, by the requirements of a definite moment. Hence the incongruity between experience and science. Since they are developed upon parallel lines, they can reduce to some extent the interval that separates them, but they can never annul it by becoming coincident with one another.[24]
Rickert,in his book on theLimits of theNaturalistic Concepts,maintains similar ideas, though with different cultural assumptions. The concept, which is the result of the labour of the sciences, is nothing but a means to a scientific end. The world of bodies and of souls is infinite in space and time. It is not possible to represent it in every individual part, by reason of its variety, which is not only extensive but also intensive: intuition is inexhaustible. The naturalistic concept is directed to surpassing this infinity of intuitions. It effects this by determining its own extension and comprehension, and by formulating its being in a series of judgments. Thus, in order to conquer intuition altogether, the natural sciences tend to substitute for concepts oftilingsconcepts ofrelationsfree from all intuitive elements. But the ultimate concept must always of necessity be a concept of things (though of thingssui generis,immutable, indivisible, perfectly equal among themselves, expressible in negative judgments); and besides, they find everywhere insuperable barriers in the historical or descriptive element, which surrounds them all and is ineliminable. This naturalistic procedure can be applied and is indeed applied, not only to the science of bodies, but also to that of souls, to psychology and sociology; andRickert opportunely insists (as did Hegel in his time) upon the possibility of empirical sciences of what is called the spiritual world; or (as he says) the word "nature," as used in this connection, means not a reality, but a particular point of view from which reality is observed, in order to reach the end of conceptual simplification.[25]
Bergson and the new French philosophy.
In France, the same ideas or very similar are represented by a group of thinkers, who are called variously philosophers of contingency, of liberty, of intuition, or of action. Bergson, who is the chief of them, looks upon the concepts of the natural sciences in the same way as Mach, assymbolesandétiquettes.Besides the extremely apposite applications that he has made of this principle to the analysis of time, of duration, of space, of movement, of liberty, of evolution, he has also the great merit of having broken his country's traditions of intellectualism and abstractionism, of giving to France for the first time that lively consciousness of the intuition, which she has always lacked, and of shaking her excessive reliance upon clear distinctions, upon well-turned concepts, upon classes, formulæ, and reasoningsthat proceed in a straight line, but run upon the surface of reality.[26]
Le Roy and others.
Le Roy, one of the followers of Bergson, has set himself to demonstrate, with many examples, that scientific laws only become rigorous when they are changed into conventions and depend upon vicious circles. The course of events is habitual and regular (if you like to say so), but it is not at all necessary. The great security of astronomical previsions is commonly praised; but that security is not always such in actual fact ("il y a des comètes qui ne reviennent pas"), and in any case it is always approximate. The rigorous necessity of which the natural sciences boast, is not known, but is rather postulated, and this postulation has merely the practical object of dominating single facts and of communicating with our neighbours ("parler le monde"). The law of gravity holds, but only when external forces do not disturb it. In this way it is well understood that it always holds. The conservation of energy avails only in closed systems; but closed systems are just those in which energy is conserved. A body left to itself persists in the state of repose; but this law is nothing but the definition of a bodyleft to itself, and so on.[27]Poincaré boldly affirms the conventional character of the mathematical and physical sciences, as do Milhaud and several others. They have deduced it as a consequence of the impression aroused by the theories of higher geometry, which has contributed more or less successfully towards revealing the practical character of mathematics, which was formerly held to be the foundation or model of truth and certainty.
Reattachment to romantic ideas and advance made upon them.
All those criticisms directed against the sciences do not sound new to the ears of those Schelling, of Novalis, and of other romantics, and particularly with Hegel's marvellous criticism of the abstract (that is, empirical and mathematical) intellect. This runs through all his books, from thePhenomenology of the Spiritto theScience of Logic,and is enriched with examples in the observations to the paragraphs of thePhilosophy of Nature.But if compared with that of Hegel, they are at the disadvantage of not being based upon powerful philosophical thought; they have, on the other hand, this superiority: that they do not present the characteristics observed in the sciences as errors whichmust be corrected, but define them as physiological, necessary, uncensurable characteristics, derived from the very function of the sciences, which is not theoretic, but practical and economic. In this way there is posited one of the premisses that are necessary for preventing the mixture of the economic method with the method of truth, of empirical and abstract concepts with pure theoretic forms, and thus for making impossible that speculative hybridism, which is expressed in philosophies of history and of nature, and which fashions an abstract reason to work out a dialectic of the naturalistic concepts, and even of the representations of history. And with the prevention of this error there is also prepared a more exact idea of the relation between pseudoconcepts and concepts and a better constitution of philosophic Logic.
Philosophy of pure experience, of intuition, of action, etc.; and its insufficiency.
But in order that this result should be obtained, the idea of the philosophic universal must be reawakened and strengthened, in conformity with its most perfect elaboration in the history of thought, at the hands of Hegel. The critics of the sciences are at present far from this mark. The term that is distinct from the empirical and abstract concepts, the knowledge of reality which is not falsified by practical ends and discoveredbeneath labels and formulae, is supplied, not by the pure concept, by reality thought in its concreteness, by philosophy which is history, but by pure sensation or intuition. Both Avenarius and Mach appeal to pure and primitive experience, that is, to experience free of thought and anterior to it. Bergson, with an artistic talent that is wanting to the two Germans, but following the same path, has proclaimed a new metaphysic, which proceeds in an opposite sense to that of symbolical knowledge and of generalizing and abstracting experience. He has defined the metaphysic which he desires, as a sciencequi prétend se passer des symboles,and therefore as "Science de l'expérience intégrale." This metaphysic would be the opposite of the Kantian ideal, of the mathematical universal, of the Platonism of the concepts, and would be founded upon intuition, the sole organ of the Absolute: "est relative la connaissance symbolique par concepts pré-existants qui va du fixe au mouvant, mais non pas la connaissance intuitive, qui s'installe dans le mouvement et adopte la vie même des choses. Cette intuition atteint l'absolu."[28]The conclusion is æstheticism, and sometimes something evenless than æstheticism, namely mysticism, oractionsubstituted for the concept. The criticism of the sciences thereby comes to mean the negation of knowledge and of truth. Hence the protest of Poincaré[29]against Le Roy, justified in its motive, but ineffective, because based upon the presuppositions of mathematics and physics. In others again, it becomes intermingled with the turbid waters of pragmatism, which is a little of everything, but, above all, chatter and emptiness.