It is then certain that compassion is a natural feeling which, by moderating the violence of love of self in each individual, contributes to the preservation of the whole species. It is this compassion that hurries us without reflection to the relief of those who are in distress: it is this which in a state of nature supplies the place of laws, morals and virtues, with the advantage that none are tempted to disobey its gentle voice: it is this which will always prevent a sturdy savage from robbing a weak child or a feeble old man of the sustenance they may have with pain and difficulty acquired, if he sees a possibility of providing for himself by other means: it is this which, instead of inculcating that sublime maxim of rational justice, Do to others as you would have them do unto you, inspires all men with that other maxim of natural goodness, much less perfect indeed, but perhaps more useful; Do good to yourself with as little evil as possible to others. In a word, it is rather in this natural feeling than in any subtle arguments that we must look for the cause of that repugnance, which every man would experience in doing evil, even independently of the maxims of education. Although it might belong to Socrates and other minds of the like craft to acquire virtue by reason, the human race would long since have ceased to be, had its preservation depended only on the reasonings of the individuals composing it.
With passions so little active, and so good a curb, men, being rather wild than wicked, and more intent to guard themselves against the mischief that might be done them, than to do mischief to others, were by no means subject to very perilous dissensions. They maintained no kind of intercourse with one another, and were consequently strangers to vanity, deference, esteem and contempt; they had not the least idea of meum and tuum, and no true conception of justice; they looked upon every violence to which they were subjected, rather as an injury that might easily be repaired than as a crime that ought to be punished; and they never thought of taking revenge, unless perhaps mechanically and on the spot, as a dog will sometimes bite the stone which is thrown at him. Their quarrels therefore would seldom have very bloody consequences; for the subject of them would be merely the question of subsistence. But I am aware of one greater danger, which remains to be noticed.
Of the passions that stir the heart of man, there is one which makes the sexes necessary to each other, and is extremely ardent and impetuous; a terrible passion that braves danger, surmounts all obstacles, and in its transports seems calculated to bring destruction on the human race which it is really destined to preserve. What must become of men who are left to this brutal and boundless rage, without modesty, without shame, and daily upholding their amours at the price of their blood?
It must, in the first place, be allowed that, the more violent the passions are, the more are laws necessary to keep them under restraint. But, setting aside the inadequacy of laws to effect this purpose, which is evident from the crimes and disorders to which these passions daily give rise among us, we should do well to inquire if these evils did not spring up with the laws themselves; for in this case, even if the laws were capable of repressing such evils, it is the least that could be expected from them, that they should check a mischief which would not have arisen without them.
Let us begin by distinguishing between the physical and moral ingredients in the feeling of love. The physical part of love is that general desire which urges the sexes to union with each other. The moral part is that which determines and fixes this desire exclusively upon one particular object; or at least gives it a greater degree of energy toward the object thus preferred. It is easy to see that the moral part of love is a factitious feeling, born of social usage, and enhanced by the women with much care and cleverness, to establish their empire, and put in power the sex which ought to obey. This feeling, being founded on certain ideas of beauty and merit which a savage is not in a position to acquire, and on comparisons which he is incapable of making, must be for him almost non-existent; for, as his mind cannot form abstract ideas of proportion and regularity, so his heart is not susceptible of the feelings of love and admiration, which are even insensibly produced by the application of these ideas. He follows solely the character nature has implanted in him, and not tastes which he could never have acquired; so that every woman equally answers his purpose.
Men in a state of nature being confined merely to what is physical in love, and fortunate enough to be ignorant of those excellences, which whet the appetite while they increase the difficulty of gratifying it, must be subject to fewer and less violent fits of passion, and consequently fall into fewer and less violent disputes. The imagination, which causes such ravages among us, never speaks to the heart of savages, who quietly await the impulses of nature, yield to them involuntarily, with more pleasure than ardour, and, their wants once satisfied, lose the desire. It is therefore incontestable that love, as well as all other passions, must have acquired in society that glowing impetuosity, which makes it so often fatal to mankind. And it is the more absurd to represent savages as continually cutting one another's throats to indulge their brutality, because this opinion is directly contrary to experience; the Caribeans, who have as yet least of all deviated from the state of nature, being in fact the most peaceable of people in their amours, and the least subject to jealousy, though they live in a hot climate which seems always to inflame the passions.
With regard to the inferences that might be drawn, in the case of several species of animals, the males of which fill our poultry-yards with blood and slaughter, or in spring make the forests resound with their quarrels over their females; we must begin by excluding all those species, in which nature has plainly established, in the comparative power of the sexes, relations different from those which exist among us: thus we can base no conclusion about men on the habits of fighting cocks. In those species where the proportion is better observed, these battles must be entirely due to the scarcity of females in comparison with males; or, what amounts to the same thing, to the intervals during which the female constantly refuses the advances of the male: for if each female admits the male but during two months in the year, it is the same as if the number of females were five-sixths less. Now, neither of these two cases is applicable to the human species, in which the number of females usually exceeds that of males, and among whom it has never been observed, even among savages, that the females have, like those of other animals, their stated times of passion and indifference. Moreover, in several of these species, the individuals all take fire at once, and there comes a fearful moment of universal passion, tumult and disorder among them; a scene which is never beheld in the human species, whose love is not thus seasonal. We must not then conclude from the combats of such animals for the enjoyment of the females, that the case would be the same with mankind in a state of nature: and, even if we drew such a conclusion, we see that such contests do not exterminate other kinds of animals, and we have no reason to think they would be more fatal to ours. It is indeed clear that they would do still less mischief than is the case in a state of society; especially in those countries in which, morals being still held in some repute, the jealousy of lovers and the vengeance of husbands are the daily cause of duels, murders, and even worse crimes; where the obligation of eternal fidelity only occasions adultery, and the very laws of honour and continence necessarily increase debauchery and lead to the multiplication of abortions.
Let us conclude then that man in a state of nature, wandering up and down the forests, without industry, without speech, and without home, an equal stranger to war and to all ties, neither standing in need of his fellow-creatures nor having any desire to hurt them, and perhaps even not distinguishing them one from another; let us conclude that, being self-sufficient and subject to so few passions, he could have no feelings or knowledge but such as befitted his situation; that he felt only his actual necessities, and disregarded everything he did not think himself immediately concerned to notice, and that his understanding made no greater progress than his vanity. If by accident he made any discovery, he was the less able to communicate it to others, as he did not know even his own children. Every art would necessarily perish with its inventor, where there was no kind of education among men, and generations succeeded generations without the least advance; when, all setting out from the same point, centuries must have elapsed in the barbarism of the first ages; when the race was already old, and man remained a child.
If I have expatiated at such length on this supposed primitive state, it is because I had so many ancient errors and inveterate prejudices to eradicate, and therefore thought it incumbent on me to dig down to their very root, and show, by means of a true picture of the state of nature, how far even the natural inequalities of mankind are from having that reality and influence which modern writers suppose.
It is in fact easy to see that many of the differences which distinguish men are merely the effect of habit and the different methods of life men adopt in society. Thus a robust or delicate constitution, and the strength or weakness attaching to it, are more frequently the effects of a hardy or effeminate method of education than of the original endowment of the body. It is the same with the powers of the mind; for education not only makes a difference between such as are cultured and such as are not, but even increases the differences which exist among the former, in proportion to their respective degrees of culture: as the distance between a giant and a dwarf on the same road increases with every step they take. If we compare the prodigious diversity, which obtains in the education and manner of life of the various orders of men in the state of society, with the uniformity and simplicity of animal and savage life, in which every one lives on the same kind of food and in exactly the same manner, and does exactly the same things, it is easy to conceive how much less the difference between man and man must be in a state of nature than in a state of society, and how greatly the natural inequality of mankind must be increased by the inequalities of social institutions.