As soon as men began to value one another, and the idea of consideration had got a footing in the mind, every one put in his claim to it, and it became impossible to refuse it to any with impunity. Hence arose the first obligations of civility even among savages; and every intended injury became an affront; because, besides the hurt which might result from it, the party injured was certain to find in it a contempt for his person, which was often more insupportable than the hurt itself.

Thus, as every man punished the contempt shown him by others, in proportion to his opinion of himself, revenge became terrible, and men bloody and cruel. This is precisely the state reached by most of the savage nations known to us: and it is for want of having made a proper distinction in our ideas, and seen how very far they already are from the state of nature, that so many writers have hastily concluded that man is naturally cruel, and requires civil institutions to make him more mild; whereas nothing is more gentle than man in his primitive state, as he is placed by nature at an equal distance from the stupidity of brutes, and the fatal ingenuity of civilised man. Equally confined by instinct and reason to the sole care of guarding himself against the mischiefs which threaten him, he is restrained by natural compassion from doing any injury to others, and is not led to do such a thing even in return for injuries received. For, according to the axiom of the wise Locke, There can be no injury, where there is no property.

But it must be remarked that the society thus formed, and the relations thus established among men, required of them qualities different from those which they possessed from their primitive constitution. Morality began to appear in human actions, and every one, before the institution of law, was the only judge and avenger of the injuries done him, so that the goodness which was suitable in the pure state of nature was no longer proper in the new-born state of society. Punishments had to be made more severe, as opportunities of offending became more frequent, and the dread of vengeance had to take the place of the rigour of the law. Thus, though men had become less patient, and their natural compassion had already suffered some diminution, this period of expansion of the human faculties, keeping a just mean between the indolence of the primitive state and the petulant activity of our egoism, must have been the happiest and most stable of epochs. The more we reflect on it, the more we shall find that this state was the least subject to revolutions, and altogether the very best man could experience; so that he can have departed from it only through some fatal accident, which, for the public good, should never have happened. The example of savages, most of whom have been found in this state, seems to prove that men were meant to remain in it, that it is the real youth of the world, and that all subsequent advances have been apparently so many steps towards the perfection of the individual, but in reality towards the decrepitude of the species.

So long as men remained content with their rustic huts, so long as they were satisfied with clothes made of the skins of animals and sewn together with thorns and fish-bones, adorned themselves only with feathers and shells, and continued to paint their bodies different colours, to improve and beautify their bows and arrows and to make with sharp-edged stones fishing boats or clumsy musical instruments; in a word, so long as they undertook only what a single person could accomplish, and confined themselves to such arts as did not require the joint labour of several hands, they lived free, healthy, honest and happy lives, so long as their nature allowed, and as they continued to enjoy the pleasures of mutual and independent intercourse. But from the moment one man began to stand in need of the help of another; from the moment it appeared advantageous to any one man to have enough provisions for two, equality disappeared, property was introduced, work became indispensable, and vast forests became smiling fields, which man had to water with the sweat of his brow, and where slavery and misery were soon seen to germinate and grow up with the crops.

Metallurgy and agriculture were the two arts which produced this great revolution. The poets tell us it was gold and silver, but, for the philosophers, it was iron and corn, which first civilised men, and ruined humanity. Thus both were unknown to the savages of America, who for that reason are still savage; the other nations also seem to have continued in a state of barbarism while they practised only one of these arts. One of the best reasons, perhaps, why Europe has been, if not longer, at least more constantly and highly civilised than the rest of the world, is that it is at once the most abundant in iron and the most fertile in corn.

It is difficult to conjecture how men first came to know and use iron; for it is impossible to suppose they would of themselves think of digging the ore out of the mine, and preparing it for smelting, before they knew what would be the result. On the other hand, we have the less reason to suppose this discovery the effect of any accidental fire, as mines are only formed in barren places, bare of trees and plants; so that it looks as if nature had taken pains to keep the fatal secret from us. There remains, therefore, only the extraordinary accident of some volcano which, by ejecting metallic substances already in fusion, suggested to the spectators the idea of imitating the natural operation. And we must further conceive them as possessed of uncommon courage and foresight, to undertake so laborious a work, with so distant a prospect of drawing advantage from it; yet these qualities are united only in minds more advanced than we can suppose those of these first discoverers to have been.

With regard to agriculture, the principles of it were known long before they were put in practice; and it is indeed hardly possible that men, constantly employed in drawing their subsistence from plants and trees, should not readily acquire a knowledge of the means made use of by nature for the propagation of vegetables. It was in all probability very fang, however, before their industry took that turn, either because trees, which together with hunting and fishing afforded them food, did not require their attention; or because they were ignorant of the use of corn, or without instruments to cultivate it; or because they lacked foresight to future needs; or lastly, because they were without means of preventing others from robbing them of the fruit of their labour.

When they grew more industrious, it is natural to believe that they began, with the help of sharp stones and pointed sticks, to cultivate a few vegetables or roots around their huts; though it was long before they knew how to prepare corn, or were provided with the implements necessary for raising it in any large quantity; not to mention how essential it is, for husbandry, to consent to immediate loss, in order to reap a future gain—a precaution very foreign to the turn of a savage's mind; for, as I have said, he hardly foresees in the morning what he will need at night.

The invention of the other arts must therefore have been necessary to compel mankind to apply themselves to agriculture. No sooner were artificers wanted to smelt and forge iron, than others were required to maintain them; the more hands that were employed in manufactures, the fewer were left to provide for the common subsistence, though the number of mouths to be furnished with food remained the same: and as some required commodities in exchange for their iron, the rest at length discovered the method of making iron serve for the multiplication of commodities. By this means the arts of husbandry and agriculture were established on the one hand, and the art of working metals and multiplying their uses on the other.

The cultivation of the earth necessarily brought about its distribution; and property, once recognised, gave rise to the first rules of justice; for, to secure each man his own, it had to be possible for each to have something. Besides, as men began to look forward to the future, and all had something to lose, every one had reason to apprehend that reprisals would follow any injury he might do to another. This origin is so much the more natural, as it is impossible to conceive how property can come from anything but manual labour: for what else can a man add to things which he does not originally create, so as to make them his own property? It is the husbandman's labour alone that, giving him a title to the produce of the ground he has tilled, gives him a claim also to the land itself, at least till harvest; and so, from year to year, a constant possession which is easily transformed into property. When the ancients, says Grotius, gave to Ceres the title of Legislatrix, and to a festival celebrated in her honour the name of Thesmophoria, they meant by that that the distribution of lands had produced a new kind of right: that is to say, the right of property, which is different from the right deducible from the law of nature.