To attribute the effects to which we are witnesses, to nature, to matter, variously combined with the motion that is inherent to it, is to give them an intelligible and known cause; to attempt to penetrate deeper, is to plunge ourselves into imaginary regions, where we find only a chaos of obscurities—where we are lost in an unfathomable abyss of incertitude. Let us then be content with contemplating nature, who, being self-existent, must in her essence possess motion; which cannot be conceived without properties, from which result perpetual action and re-action; or those continual efforts which give birth to such a numerous train of circumstances; in which a single molecule cannot be found, that does not necessarily occupy the place assigned to it, by immutable and necessary laws—that is for an instant in an absolute state of repose. What necessity can there exist to seek out of matter for a power to give it play, since its motion flows as necessarily out of its existence as its bulk, its form, its gravity, &c. since nature in inaction would no longer be nature?

If it be demanded, How can we figure to ourselves, that matter by its own peculiar energy can produce all the effects we witness? I shall reply, that if by matter it is obstinately determined to understand nothing but a dead, inert mass, destitute of every property, incapable of moving itself, we shall no longer have a single idea of matter; we shall no longer be able to account for any thing. As soon, however, as it exists, it must have properties; as soon as it has properties, without which it could not exist, it must act by virtue of those properties; since it is only by its action we can have a knowledge of its existence, be conscious of its properties. It is evident that if by matter be understood that which it is not, or if its existence be denied, those phenomena which strike our visual organs cannot be attributed to it. But if by nature be understood (that which she really is), an heap of existing matter, possessing various properties, we shall be obliged to acknowledge that nature must be competent to move herself; by the diversity of her motion, must have the capability, independent of foreign aid, to produce the effects we behold; we shall find that nothing can be made from nothing; that nothing is made by chance; that the mode of action of every particle of matter, however minute, is necessarily determined by its own peculiar, or by its individual properties.

We have elsewhere said, that that which cannot be annihilated—that which in its nature is indestructible—cannot have been inchoate, cannot have had a beginning to its existence, but exists necessarily from all eternity; contains within itself a sufficient cause for its own peculiar existence. It becomes then perfectly useless to seek out of nature a cause for her action which is in some respects known to us; with which indefatigable research may, judging of the future by the past, render us more familiar. As we know some of the general properties of matter; as we can discover some of its qualities, wherefore should we seek its motion in an unintelligible cause, of which we are not in a condition to become acquainted with any one of its properties? Can we conceive that immateriality could ever draw matter from its own source? Impossible; it is not within the grasp of human intellect. If creation is an eduction from nothing, there must have been a time when matter had not existence; there must consequently be a time when it will cease to be: this latter is acknowledged by many theologians themselves to be impossible. Do those who are continually talking of this mysterious act of omnipotence, by which a mass of matter has been, all at once, substituted to nothing, perfectly understand what they tell us? Is there a man on earth who conceives that a being devoid of extent can exist, become the cause of the existence of beings who have extent—act upon matter—draw it from his own peculiar essence—set it in motion? In truth, the more we consider theology, the more we must be convinced that it has invented words destitute of sense; substituted sounds to intelligible realities.

For want of consulting experience, for want or studying nature, for want of examining the material world, we have plunged ourselves into an intellectual vacuum, which we have peopled with chimeras, We have not stooped to consider matter, to study its different periods, to follow it through its numerous, changes. We have either ridiculously or knavishly confounded dissolution, decomposition, the separation of the elementary particles of bodies, with their radical destruction; we have been unwilling to see that the elements are indestructible; although the forms are fleeting, and depend upon transitory combination. We have not distinguished the change of figure, the alteration of position, the mutation of texture, to which matter is liable, from its annihilation, which is impossible; we have falsely concluded, that matter Was not a necessary being—that it commenced to exist—that this existence was derived from that which possessed nothing in common with itself—that that which was not substance, could give birth to that which is. Thus an unintelligible name has been substituted for matter, which furnishes us with true ideas of nature; of which at each instant we experience the influence, of which we undergo the action, of which we feel the power, and of which we should have a much better knowledge, if our abstract opinions did not continually fasten a bandage over our eyes.

Indeed the most simple notions of philosophy shew us, that, although bodies change and disappear, nothing is however lost in nature; the various produce of the decomposition of a body serves for elements, supplies materials, forms the basis, lays the foundation for accretions, contributes to the maintenance of other bodies. The whole of nature subsists, and is conserved only by the circulation, the transmigration, the exchange, the perpetual displacement of insensible atoms—the continual mutation of the sensible combinations of matter. It is by this palingenesia, this regeneration, that the great whole, the mighty macrocosm subsists; who, like the Saturn of the ancients, is perpetually occupied with devouring her own children.

It will not then be inconsistent with observation, repugnant to reason, contrary to good sense, to acknowledge that matter is self-existent; that it acts by an energy peculiar to itself; that it will never be annihilated. Let us then say, that matter is eternal; that nature has been, is, and ever will be occupied with producing and destroying; with doing and undoing; with combining and separating; in short, with following a system of laws resulting from its necessary existence. For every thing that she doth, she needs only to combine the elements of matter; these, essentially diverse, necessarily either attract or repel each other; come into collision, from whence results either their union or dissolution; by the same laws that one approximates, the other recedes from their respective spheres of action. It is thus that she brings forth plants, fossils, animals, men; thus she gives existence to organized, sensible, thinking beings, as well as to those who are destitute of either feeling or thought. All these act for the season of their respective duration, according to immutable laws, determined by their various properties; arising out of their configuration; depending on their masses; resulting from their ponderosity, &c. Here is the true origin of every thing which is presented to our view; this indicates the mode by which nature, according to her own peculiar powers, is in a state to produce all those astonishing effects which assail our wondering eyes; all that phenomena to which mankind is the witness; as well as all the bodies who act diversely upon the organs with which he is furnished, of which he can only judge according to the manner in which these organs are affected. He says they are good, when they are analogous to his own mode of existence—when they contribute to the maintenance of the harmony of his machine: he says they are bad, when they disturb this harmony. It is thus he ascribes views, ideas, designs, to the being he supposes to be the power by which nature is moved; although all the experience we are able to collect, unequivocally proves, that she acts after an invariable, eternal code of laws.

Nature is destitute of those views which actuate man; she acts necessarily, because she exists: her system is immutable, and founded upon the essence of things. It is the essence of the seed of the male, composed of primitive elements, which serve for the basis of an organized being, to unite itself with that of the female; to fructify it; to produce, by this combination, a new organized being; who, feeble in his origin, not having yet acquired a sufficient quantity of material particles to give him consistence, corroborates himself by degrees; strengthens himself by the daily accretion of analogous matter; is nourished by the modifications appropriate to his existence: matured by the continuation of circumstances calculated to give vigour to his frame; thus he lives, thinks, acts, engenders in his turn other organized beings similar to himself. By a consequence of his temperament and of physical laws, this generation does not take place, except when the circumstances necessary to its production find themselves united. Thus this procreation is not operated by chance; the animal does not fructify, but with an animal of his own species, because this is the only one analogous to himself, who unites the qualities, who combines the circumstances, suitable to produce a being resembling himself; without this he would not produce any thing, or he would only give birth to a being who would be denominated a monster, because it would be dissimilar to himself. It is of the essence of the grain of plants, to be impregnated by the pollen or seed of the stygma of the flower; in this state of copulation they in consequence develope themselves in the bowels of the earth; expand by the aid of water; shoot forth by the accession of heat; attract analogous particles to corroborate their system: thus by degrees they form a plant, a shrub, a tree, susceptible of that life, filled with that motion, capable of that action which is suitable to vegetable existence. It is of the essence of particular particles of earth, homogeneous in their nature, when separated by circumstances, attenuated by water, elaborated by heat, to unite themselves in the bosom of mountains, with other atoms which are analogous; to form by their aggregation, according to their various affinities, those bodies possessing more or less solidity; having more or less purity, which are called diamonds, chrystals, stones, metals, minerals. It is of the essence of exhalations raised by the heat of the atmosphere, to combine, to collect themselves, to dash against each other, and either by their union or their collision to produce meteors, to generate thunder. It is of the essence of some inflammable matter to gather itself together, to ferment in the caverns of the earth, to increase its active force by augmenting its heat, and then explode, by the accession of other matter suitable to the operation, with that tremendous force which we call earthquakes; by which mountains are destroyed; cities overturned; the inhabitants of the plains thrown into a state of consternation; these full of alarm, unused to meditate on natural effects, unconscious of the extent of physical powers, stretch forth their hands in dismay, heave the most desponding sighs, utter aloud their complaints, and earnestly implore a cessation of those evils, which nature, acting by necessary laws, obliges them to experience as necessarily as she does those benefits by which she fills them with the most extravagant joy. In short, it is of the essence of certain climates to produce men so organized, whose temperament is so modified, that they become either extremely useful or very prejudicial to their species, in the same manner as it is the property of certain portions of the land, to bring forth either delicious fruits or dangerous poisons.

In all this nature acts necessarily; she pursues an undeviating course, which we are bound to consider the perfection of wisdom; because she exists necessarily, has her modes of action determined by certain, invariable laws, which themselves flow out of the constituent properties of the various beings she contains, and those circumstances, which the eternal motion she is in must necessarily bring about. It is ourselves who have a necessary aim, which is our own conservation; it is by this that we regulate all the ideas we form to ourselves of the causes acting in nature; it is according to this standard we judge of every thing we see or feel. Animated ourselves, existing after a certain manner, possessing a soul endowed with rare and peculiar qualities, we, like the savage, ascribe a soul and animated life to every thing that acts upon us. Thinking and intelligent ourselves, we give these, faculties to those beings whom we suppose to be more powerful than mortals; but as we see the generality of matter incapable of modifying itself, we suppose it must receive its impulse from some concealed agent, some external cause, which our imagination pictures as similar to ourselves. Necessarily attracted by that which is advantageous to us, repelling by an equal necessity that which is prejudicial to our manner of existence; we cease to reflect that our modes of feeling are due to our peculiar organization, modified by physical causes: in this state, either of inattention or ignorance, we mistake the natural results of our own peculiar structure, for instruments employed by a being whom we clothe with our own passions—whom we suppose actuated by our own views—who, possessing our ideas, embraces a mode of thinking and acting similar to ourselves.

If after this it be asked, What is the end of nature? We shall reply that on this head we are ignorant; that it is more than probable no man will ever fathom the secret; but we shall also say, it is evidently to exist, to act, to conserve her whole. If then it be demanded, Wherefore she exists? We shall again reply, of this we know nothing at present, possibly never shall; but we shall also say, she exists necessarily, that her operations, her motion, her phenomena, are the necessary consequences of her necessary existence. There necessarily exists something; this is nature or the universe, this nature necessarily acts as she does. If it be wished to substitute any other word for nature, the question will still remain as it did, as to the cause of her existence; the end she has in view. It is not by changing of terms that a geometrician can solve problems; one word will throw no more light on a subject than another, unless that word carries a certain degree of conviction in the ideas which it generates. As long as we speak of matter, if we cannot develope all its properties, we shall at least have fixed, determinate ideas; something tangible, of which we have a slight knowledge, that we can submit to the examination of our senses: but from the moment we begin to talk of immateriality, of incorporeity, from thence our ideas become confused; we are lost in a labyrinth of conjecture—we have no one means of seizing the subject on any side—we are, after the most elaborate arguments, after the most subtle reasoning, obliged to acknowledge we cannot form the most slender opinion respecting it, that has any thing substantive for its support. In short, that it is precisely that thing "of which every thing may be denied, but of which nothing can with truth be affirmed." Let us clothe this incomprehensible being with whatever qualities we may, it will be always in ourselves we seek the model; they will be our own faculties that we delineate, our own passions that we describe. In like manner man, as long as he is ignorant, will always conjecture that it is for himself alone the universe was formed; not withstanding, he has nothing more to do, than to open his eyes in order to be undeceived. He will then see, that he undergoes a common destiny, equally partakes with all other beings of the benefits, shares with them without exception the evils of life; like them he is submitted to an imperious necessity, inexorable in its decrees; which is itself nothing more than the sum total of those laws which nature herself is obliged to follow.

Thus every thing proves that nature, or matter, exists necessarily; that it cannot in any moment swerve from those laws imposed upon it by its existence. If it cannot be annihilated, it cannot have been inchoate. The theologian himself agrees that it requires a miracle to annihilate an atom. But is it possible to derogate from the necessary laws of existence? Can that which exists necessarily, act but according to the laws peculiar to itself? Miracle is another word invented to shield our own sloth, to cover our own ignorance; it is that by which we wish to designate those rare occurrences, those solitary effects of natural causes, whose infrequency do not afford us means of diving into their springs. It is only saying by another expression, that an unknown cause hath by modes which we cannot trace, produced an uncommon effect which we did not expect, which therefore appears strange to us. This granted, the intervention of words, far from removing the ignorance in which we found ourselves with respect to the power and capabilities of nature, only serves to augment it, to give it more durability. The creation of matter becomes to our mind as incomprehensible, and appears as impossible as its annihilation.