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The System of Nature, or, the Laws of the Moral and Physical World. Volume 1 · Paul Henri Thiry Holbach

CHAP. IX.

_The Diversity of the Intellectual Faculties: they depend on Physical Causes, as do their Moral Qualities.--The Natural Principles of Society.--Morals.--Politics_. Nature is under the necessity of diversifying all her works. Elementary matter, different in its essence, must necessarily form different beings, various in their combinations, in their properties, in their modes of action, in their manner of existence. There is not, neither can there be, two beings, two combinations, which are mathematically and rigorously the same; because the place, the circumstances, the relations; the proportions, the modifications, never being exactly alike, the beings that result can never bear a perfect resemblance to each other: their modes of action must of necessity vary in something, even when we believe we find between them the greatest conformity.

In consequence of this principle, which every thing we see conspires to prove to be a truth, there are not two individuals of the human species who have precisely the same traits--who think exactly in the same manner--who view things under the same identical point of sight--who have decidedly the same ideas; consequently no two of them have uniformly the same system of conduct. The visible organs of man, as well as his concealed organs, have indeed some analogy, some common points of resemblance, some general conformity; which makes them appear, when viewed in the gross, to be affected in the same manner by certain causes: but the difference is infinite in the detail. The human soul may be compared to those instruments, of which the chords, already diversified in themselves, by the manner in which they have been spun, are also strung upon different notes: struck by the same impulse, each chord gives forth the sound that is peculiar to itself; that is to say, that which depends on its texture, its tension, its volume, on the momentary state in which it is placed by the circumambient air. It is this that produces the diversified spectacle, the varied scene, which the moral world offers to our view: it is from this that results the striking contrariety that is to be found in the minds, in the faculties, in the passions, in the energies, in the taste, in the imagination, in the ideas, in the opinions of man. This diversity is as great as that of his physical powers: like them it depends on his temperament, which is as much varied as his physiognomy. This variety gives birth to that continual series of action and reaction, which constitutes the life of the moral world: from this discordance results the harmony which at once maintains and preserves the human race.

The diversity found among the individuals of the human species, causes inequalities between man and man: this inequality constitutes the support of society. If all men were equal in their bodily powers, in their mental talents, they would not have any occasion for each other: it is the variation of his faculties, the inequality which this places him in, with regard to his fellows, that renders morals necessary to man: without these, he would live by himself, he would remain an isolated being. From whence it may be perceived, that this inequality of which man so often complains without cause--this impossibility which each man finds when in an isolated state, when left to himself, when unassociated with his fellow men, to labour efficaciously to his own welfare, to make his own security, to ensure his own conservation; places him in the happy situation of associating with his like, of depending on his fellow associates, of meriting their succour, of propitiating them to his views, of attracting their regard, of calling in their aid to chase away, by common and united efforts, that which would have the power to trouble or derange the order of his existence. In consequence of man's diversity, of the inequality that results, the weaker is obliged to seek the protection of the stronger; this, in his turn, recurs to the understanding, to the talents, to the industry of the weaker, whenever his judgment points out he can be useful to him: this natural inequality furnishes the reason why nations distinguish those citizens who have rendered their country eminent services. It is in consequence of his exigencies that man honors and recompenses those whose understanding, good deeds, assistance, or virtues, have procured for him real or supposed advantages, pleasures, or agreeable sensations of any sort: it is by this means that genius gains an ascendancy over the mind of man, and obliges a whole people to acknowledge its powers. Thus, the diversity and inequality of the faculties, as well corporeal as mental or intellectual, renders man necessary to his fellow man, makes him a social being, and incontestibly proves to him the necessity of morals.

According to this diversity of faculties, the individuals of the human species are divided into different classes, each in proportion to the effects produced, or the different qualities that may be remarked: all these varieties in man flow from the individual properties of his soul, or from the particular modification of his brain. It is thus, that wit, imagination, sensibility, talents, &c. diversify to infinity the differences that are to be found in man. It is thus, that some are called good, others wicked; some are denominated virtuous, others vicious; some are ranked as learned, others as ignorant; some are considered reasonable, others unreasonable, &c. If all the various faculties attributed to the soul are examined, it will be found that like those of the body they are to be ascribed to physical causes, to which it will be very easy to recur. It will be found that the powers of the soul are the same as those of the body; that they always depend on the organization of this body, on its peculiar properties, on the permanent or transitory modifications that it undergoes; in a word, on its temperament. _Temperament_ is, in each individual, the habitual state in which he finds the fluids and the solids of which his body is composed. This temperament varies, by reason of the elements or matter that predominate in him, in consequence of the different combinations, of the various modifications, which this matter, diversified in itself, undergoes in his machine. Thus, in one, the blood is superabundant; in another, the bile; in a third, phlegm, &c.

It is from Nature--from his parents--from causes, which from the first moment of his existence have unceasingly modified him, that man derives his temperament. It is in his mother's womb that he has attracted the matter which, during his whole life, shall have an influence on his intellectual faculties--on his energies--on his passions--on his conduct. The very nourishment he takes, the quality of the air he respires, the climate he inhabits, the education he receives, the ideas that are presented to him, the opinions he imbibes, modify this temperament. As these circumstances can never be rigorously the same in every point for any two men, it is by no means surprising that such an amazing variety, so great a contrariety, should be found in man; or that there should exist as many different temperaments, as there are individuals in the human species. Thus, although man may bear a general resemblance, he differs essentially, as well by the texture of his fibres and the disposition of his nerves, as by the nature, the quality, the quantity of matter that gives them play, that sets his organs in motion. Man, already different from his fellow, by the elasticity of his fibres, the tension of his nerves, becomes still more distinguished by a variety of other circumstances: he is more active, more robust, when he receives nourishing aliments, when he drinks wine, when he takes exercise: whilst another, who drinks nothing but water, who takes less juicy nourishment, who languishes in idleness, shall be sluggish and feeble.

All these causes have necessarily an influence on the mind, on the passions, on the will; in a word, on what are called the intellectual faculties. Thus, it may be observed, that a man of a sanguine constitution, is commonly lively, ingenious, full of imagination, passionate, voluptuous, enterprising; whilst the phlegmatic man is dull, of a heavy understanding, slow of conception, inactive, difficult to be moved, pusillanimous, without imagination, or possessing it in a less lively degree, incapable of taking any strong measures, or of willing resolutely. If experience was consulted, in the room of prejudice, the physician would collect from morals, the key to the human heart: in curing the body, he would sometimes be assured of curing the mind. Man, in making a spiritual substance of his soul, has contented himself with administering to it spiritual remedies, which either have no influence over his temperament, or do it an injury. The doctrine of the spirituality of the soul has rendered morals a conjectural science, that does not furnish a knowledge of the true motives which ought to be put in activity, in order to influence man to his welfare. If, calling experience to his assistance, man sought out the elements which form the basis of his temperament, or of the greater number of the individuals composing a nation, he would then discover what would be most proper for him,--that which could be most convenient to his mode of existence--which could most conduce to his true interest--what laws would be necessary to his happiness--what institutions would be most useful for him--what regulations would be most beneficial. In short, morals and politics would be equally enabled to draw from _materialism_, advantages which the dogma of spirituality can never supply, of which it even precludes the idea. Man will ever remain a mystery, to those who shall obstinately persist in viewing him with eyes prepossessed by metaphysics; he will always be an enigma to those who shall pertinaciously attribute his actions to a principle, of which it is impossible to form to themselves any distinct idea. When man shall be seriously inclined to understand himself, let him sedulously endeavour to discover the matter that enters into his combination, which constitutes his temperament; these discoveries will furnish him with the clue to the nature of his desires, to the quality of his passions, to the bent of his inclinations--will enable him to foresee his conduct on given occasions--will indicate the remedies that may be successfully employed to correct the defects of a vicious organization, of a temperament, as injurious to himself as to the society of which he is a member.

Indeed, it is not to be doubted that man's temperament is capable of being corrected, of being modified, of being changed, by causes as physical as the matter of which it is constituted. We are all in some measure capable of forming our own temperament: a man of a sanguine constitution, by taking less juicy nourishment, by abating its quantity, by abstaining from strong liquor, &c. may achieve the correction of the nature, the quality, the quantity, the tendency, the motion of the fluids, which predominate in his machine. A bilious man, or one who is melancholy, may, by the aid of certain remedies, diminish the mass of this bilious fluid; he may correct the blemish of his humours, by the assistance of exercise; he may dissipate his gloom, by the gaiety which results from increased motion. An European transplanted into Hindostan, will, by degrees, become quite a different man in his humours, in his ideas, in his temperament, in his character.

Although but few experiments have been made with a view to learn what constitutes the temperament of man, there are still enough if he would but deign to make use of them--if he would vouchsafe to apply to useful purposes the little experience he has gleaned. It would appear, speaking generally, that the igneous principle which chemists designate under the name of _phlogiston_, or inflammable matter, is that which in man yields him the most active life, furnishes him with the greatest energy, affords the greatest mobility to his frame, supplies the greatest spring to his organs, gives the greatest elasticity to his fibres, the greatest tension to his nerves, the greatest rapidity to his fluids. From these causes, which are entirely material, commonly result the dispositions or faculties called sensibility, wit, imagination, genius, vivacity, &c. which give the tone to the passions, to the will, to the moral actions of man. In this sense, it is with great justice we apply the expressions, 'warmth of soul,' 'ardency of imagination,' 'fire of genius,' &c.

It is this fiery element, diffused unequally, distributed in various proportions through the beings of the human species, that sets man in motion, gives him activity, supplies him with animal heat, and which, if we may be allowed the expression, renders him more or less alive. This igneous matter, so active, so subtle, dissipates itself with great facility, then requires to be reinstated in his system by means of aliments that contain it, which thereby become proper to restore his machine, to lend new warmth to the brain, to furnish it with the elasticity requisite to the performance of those functions which are called intellectual. It is this ardent matter contained in wine, in strong liquor, that gives to the most torpid, to the dullest, to the most sluggish man, a vivacity of which, without it, he would be incapable--which urges even the coward on to battle. When this fiery element is too abundant in man, whilst he is labouring under certain diseases, it plunges him into delirium; when it is in too weak or in too small a quantity, he swoons, he sinks to the earth. This igneous matter diminishes in his old age--it totally dissipates at his death. It would not be unreasonable to suppose, that what physicians call the nervous fluid, which so promptly gives notice to the brain of all that happens to the body, is nothing more than electric matter; that the various proportions of this matter diffused through his system, is the cause of that great diversity to be discovered in the human being, and in the faculties he possesses.

If the intellectual faculties of man, or his moral qualities, be examined according to the principles here laid down, the conviction must be complete that they are to be attributed to material causes, which have an influence more or less marked, either transitory or durable, over his peculiar organization. But where does he derive this organization, except it be from the parents from whom he receives the elements of a machine necessarily analogous to their own? From whence does he derive the greater or less quantity of igneous matter, or vivifying heat, that decides upon, that gives the tone to his mental qualities? It is from the mother who bore him in her womb, who has communicated to him a portion of that fire with which she was herself animated, which circulated through her veins with her blood;--it is from the aliments that have nourished him,--it is from the climate he inhabits,--it is from the atmosphere that surrounds: all these causes have an influence over his fluids, over his solids, and decide on his natural dispositions. In examining these dispositions, from whence his faculties depend, it will ever be found, that they are _corporeal_, that they are _material_.

The most prominent of these dispositions in man, is that physical sensibility from which flows all his intellectual or moral qualities. To feel, according to what has been said, is to receive an impulse, to be moved, to have a consciousness of the changes operated on his system. To have sensibility is nothing more than to be so constituted as to feel promptly, and in a very lively manner, the impressions of those objects which act upon him. A sensible soul is only man's brain, disposed in a mode to receive the motion communicated to it with facility, to re-act with promptness, by giving an instantaneous impulse to the organs. Thus the man is called sensible, whom the sight of the distressed, the contemplation of the unhappy, the recital of a melancholy tale, the witnessing of an afflicting catastrophe, or the idea of a dreadful spectacle, touches in so lively a manner as to enable the brain to give play to his lachrymal organs, which cause him to shed tears; a sign by which we recognize the effect of great grief, of extreme anguish in the human being. The man in whom musical sounds excite a degree of pleasure, or produce very remarkable effects, is said to have a _sensible_ or a fine ear. In short, when it is perceived that eloquence--the beauty of the arts--the various objects that strike his senses, excite in him very lively emotions, he is said to possess a soul full of sensibility.

_Wit_, is a consequence of this physical sensibility; indeed, wit is nothing more than the facility which some beings, of the human species possess, of seizing with promptitude, of developing with quickness, a whole, with its different relations to other objects. _Genius_, is the facility with which some men comprehend this whole, and its various relations when they are difficult to be known, but useful to forward great and mighty projects. Wit may be compared to a piercing eye which perceives things quickly. Genius is an eye that comprehends at one view, all the points of an extended horizon: or what the French term _coup d'oeil_. True wit is that which perceives objects with their relations such as they really are. False wit is that which catches at relations, which do not apply to the object, or which arises from some blemish in the organization. True wit resembles the direction on a hand-post.

_Imagination_ is the faculty of combining with promptitude ideas or images; it consists in the power man possesses of re-producing with ease the modifications of his brain: of connecting them, of attaching them to the objects to which they are suitable. When imagination does this, it gives pleasure; its fictions are approved, it embellishes Nature, it is a proof of the soundness of the mind, it aids truth: when on the contrary, it combines ideas, not formed to associate themselves with each other--when it paints nothing but disagreeable phantoms, it disgusts, its fictions are censured, it distorts Nature, it advocates falsehood, it is the proof of a disordered, of a deranged mind: thus poetry, calculated to render Nature more pathetic, more touching, pleases when it creates ideal beings, but which move us agreeably: we, therefore, forgive the illusions it has held forth, on account of the pleasure we have reaped from them. The hideous chimeras of superstition displease, because they are nothing more than the productions of a distempered imagination, that can only awaken the most afflicting sensations, fills us with the most disagreeable ideas.

Imagination, when it wanders, produces fanaticism, superstitious terrors, inconsiderate zeal, phrenzy, and the most enormous crimes: when it is well regulated, it gives birth to a strong predilection for useful objects, an energetic passion for virtue, an enthusiastic love of our country, and the most ardent friendship: the man who is divested of imagination, is commonly one in whose torpid constitution phlegm predominates over the igneous fluid, over that sacred fire, which is the great principle of his mobility, of that warmth of sentiment, which vivifies all his intellectual faculties. There must be enthusiasm for transcendent virtues as well as for atrocious crimes; enthusiasm places the soul in a state similar to that of drunkenness; both the one and the other excite in man that rapidity of motion which is approved, when good results, when its effects are beneficial; but which is censured, is called folly, delirium, crime, fury; when it produces nothing but disorder and confusion.

The mind is out of order, it is incapable of judging sanely--the imagination is badly regulated, whenever man's organization is not so modified, as to perform its functions with precision. At each moment of his existence, man gathers experience; every sensation he has, furnishes a fact that deposits in his brain an idea which his memory recalls with more or less fidelity: these facts connect themselves, these ideas are associated; their chain constitutes _experience_; this lays the foundation of _science_. Knowledge is that consciousness which arises from reiterated experience--from experiments made with precision of the sensations, of the ideas, of the effects which an object is capable of producing, either in ourselves or in others. All science, to be just, must be founded on truth. Truth itself rests on the constant, the faithful relation of our senses. Thus, _truth_ is that conformity, that perpetual affinity, which man's senses, when well constituted, when aided by experience, discover to him, between the objects of which he has a knowledge, and the qualities with which he clothes them. In short, truth is nothing more than the just, the precise association of his ideas. But how can he, without experience, assure himself of the accuracy, of the justness of this association? How, if he does not reiterate this experience, can he compare it? how prove its truth? If his senses are vitiated, how is it possible they can convey to him with precision, the sensations, the facts, with which they store his brain? It is only by multiplied, by diversified, by repeated experience, that he is enabled to rectify the errors of his first conceptions.

Man is in error every time his organs, either originally defective in their nature, or vitiated by the durable or transitory modifications which they undergo, render him incapable of judging soundly of objects. Error consists in the false association of ideas, by which qualities are attributed to objects which they do not possess. Man is in error, when he supposes those beings really to have existence, which have no local habitation but in his own imagination: he is in error, when he associates the idea of happiness with objects capable of injuring him, whether immediately or by remote consequences which he cannot foresee. But how can he foresee effects of which he has not yet any knowledge? It is by the aid of experience: by the assistance which this experience affords, it is known that analogous, that like causes, produce analogous, produce like effects. Memory, by recalling these effects, enables him to form a judgment of those he may expect, whether it be from the same causes, or from causes that bear a relation to those of which he has already experienced the action. From this it will appear, that _prudence_, _foresight_, are faculties that are ascribable to, that grow out of experience. If he has felt that fire excited in his organs painful sensation, this experience suffices him to know, to foresee, that fire so applied, will consequently excite the same sensations. If he has discovered that certain actions, on his part, stirred up the hatred, elicited the contempt of others, this experience sufficiently enables him to foresee, that every time he shall act in a similar manner, he will be either hated or despised.

The faculty man has of gathering experience, of recalling it to himself, of foreseeing effects by which he is enabled to avoid whatever may have the power to injure him, to procure that which may be useful to the conservation of his existence, which may contribute to that which is the sole end of all his actions, whether corporeal or mental,--his felicity--constitutes that, which, in one word, is designated under the name of _Reason_. Sentiment, imagination, temperament, may be capable of leading him astray--may have the power to deceive him; but experience and reflection will rectify his errors, point out his mistakes, place him in the right road, teach him what can really conduce to, what can truly conduct him to happiness. From this, it will appear, that _reason_ is man's nature, modified by experience, moulded by judgment, regulated by reflection: it supposes a moderate, sober temperament; a just, a sound mind; a well-regulated, orderly imagination; a knowledge of truth, grounded upon tried, upon reiterated experience; in fact, prudence and foresight: this will serve to prove, that although nothing is more commonly asserted, although the phrase is repeated daily, nay, hourly, that _man is a reasonable being_, yet there are but a very small number of the individuals who compose the human species, of whom it can with truth be said; who really enjoy the faculty of reason, or who combine the dispositions, the experience, by which it is constituted. It ought not, then to excite surprise, that the individuals of the human race, who are in a capacity to make true experience, are so few in number. Man, when he is born, brings with him into the world organs susceptible of receiving impulse, amassing ideas, of collecting experience; but whether it be from the vice of his system, the imperfection of his organization, or from those causes by which it is modified, his experience is false, his ideas are confused, his images are badly associated, his judgment is erroneous, his brain is saturated with vicious, with wicked systems, which necessarily have an influence over his conduct, which are continually disturbing his mind, and confounding his reason.

Ideas discussed in this chapter

Text from Project Gutenberg, public domain in the United States.

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