These are three essays on political theory that are relevant to international politics. Mingst refers to them, and you should read them. I suggest that you print them out rather than read them on screen.

First, is a chapter from Thomas Hobbes' Leviathan on the "state of nature."

Second, is a chapter from Rousseau's "Discourse on the Origins of Inequality".

Third, is a link to Kant's Perpetual Peace.

THE first man who, having enclosed a piece of ground, bethought himself of saying This is mine, and found people simple enough to believe him, was the real founder of civil society. From how many crimes, wars and murders, from how many horrors and misfortunes might not any one have saved mankind, by pulling up the stakes, or filling up the ditch, and crying to his fellows, "Beware of listening to this impostor; you are undone if you once forget that the fruits of the earth belong to us all, and the earth itself to nobody." But there is great probability that things had then already come to such a pitch, that they could no longer continue as they were; for the idea of property depends on many prior ideas, which could only be acquired successively, and cannot have been formed all at once in the human mind. Mankind must have made very considerable progress, and acquired considerable knowledge and industry which they must also have transmitted and increased from age to age, before they arrived at this last point of the state of nature. Let us then go farther back, and endeavour to unify under a single point of view that slow succession of events and discoveries in the most natural order.

Man's first feeling was that of his own existence, and his first care that of self-preservation. The produce of the earth furnished him with all he needed, and instinct told him how to use it. Hunger and other appetites made him at various times experience various modes of existence; and among these was one which urged him to propagate his species — a blind propensity that, having nothing to do with the heart, produced a merely animal act. The want once gratified, the two sexes knew each other no more; and even the offspring was nothing to its mother, as soon as it could do without her.

Such was the condition of infant man; the life of an animal limited at first to mere sensations, and hardly profiting by the gifts nature bestowed on him, much less capable of entertaining a thought of forcing anything from her. But difficulties soon presented themselves, and it became necessary to learn how to surmount them: the height of the trees, which prevented him from gathering their fruits, the competition of other animals desirous of the same fruits, and the ferocity of those who needed them for their own preservation, all obliged him to apply himself to bodily exercises. He had to be active, swift of foot, and vigorous in fight. Natural weapons, stones and sticks, were easily found: he learnt to surmount the obstacles of nature, to contend in case of necessity with other animals, and to dispute for the means of subsistence even with other men, or to indemnify himself for what he was forced to give up to a stronger.

In proportion as the human race grew more numerous, men's cares increased. The difference of soils, climates and seasons, must have introduced some differences into their manner of living. Barren years, long and sharp winters, scorching summers which parched the fruits of the earth, must have demanded a new industry. On the seashore and the banks of rivers, they invented the hook and line, and became fishermen and eaters of fish. In the forests they made bows and arrows, and became huntsmen and warriors. In cold countries they clothed themselves with the skins of the beasts they had slain. The lightning, a volcano, or some lucky chance acquainted them with fire, a new resource against the rigours of winter: they next learned how to preserve this element, then how to reproduce it, and finally how to prepare with it the flesh of animals which before they had eaten raw.

This repeated relevance of various beings to himself, and one to another, would naturally give rise in the human mind to the perceptions of certain relations between them. Thus the relations which we denote by the terms, great, small, strong, weak, swift, slow, fearful, bold, and the like, almost insensibly compared at need, must have at length produced in him a kind of reflection, or rather a mechanical prudence, which would indicate to him the precautions most necessary to his security.

The new intelligence which resulted from this development increased his superiority over other animals, by making him sensible of it. He would now endeavour, therefore, to ensnare them, would play them a thousand tricks, and though many of them might surpass him in swiftness or in strength, would in time become the master of some and the scourge of others. Thus, the first time he looked into himself, he felt the first emotion of pride; and, at a time when he scarce knew how to distinguish the different orders of beings, by looking upon his species as of the highest order, he prepared the way for assuming pre-eminence as an individual.

Other men, it is true, were not then to him what they now are to us, and he had no greater intercourse with them than with other animals; yet they were not neglected in his observations. The conformities, which he would in time discover between them, and between himself and his female, led him to judge of others which were not then perceptible; and finding that they all behaved as he himself would have done in like circumstances, he naturally inferred that their manner of thinking and acting was altogether in conformity with his own. This important truth, once deeply impressed on his mind, must have induced him, from an intuitive feeling more certain and much more rapid than any kind of reasoning, to pursue the rules of conduct, which he had best observe towards them, for his own security and advantage.

Taught by experience that the love of well-being is the sole motive of human actions, he found himself in a position to distinguish the few cases, in which mutual interest might justify him in relying upon the assistance of his fellows; and also the still fewer cases in which a conflict of interests might give cause to suspect them. In the former case, he joined in the same herd with them, or at most in some kind of loose association, that laid no restraint on its members, and lasted no longer than the transitory occasion that formed it. In the latter case, every one sought his own private advantage, either by open force, if he thought himself strong enough, or by address and cunning, if he felt himself the weaker.

In this manner, men may have insensibly acquired some gross ideas of mutual undertakings, and of the advantages of fulfilling them: that is, just so far as their present and apparent interest was concerned: for they were perfect strangers to foresight, and were so far from troubling themselves about the distant future, that they hardly thought of the morrow. If a deer was to be taken, every one saw that, in order to succeed, he must abide faithfully by his post: but if a hare happened to come within the reach of any one of them, it is not to be doubted that he pursued it without scruple, and, having seized his prey, cared very little, if by so doing he caused his companions to miss theirs.

It is easy to understand that such intercourse would not require a language much more refined than that of rooks or monkeys, who associate together for much the same purpose. Inarticulate cries, plenty of gestures and some imitative sounds, must have been for a long time the universal language; and by the addition, in every country, of some conventional articulate sounds (of which, as I have already intimated, the first institution is not too easy to explain) particular languages were produced; but these were rude and imperfect, and nearly such as are now to be found among some savage nations.

Hurried on by the rapidity of time, by the abundance of things I have to say, and by the almost insensible progress of things in their beginnings, I pass over in an instant a multitude of ages; for the slower the events were in their succession, the more rapidly may they be described.

These first advances enabled men to make others with greater rapidity. In proportion as they grew enlightened, they grew industrious. They ceased to fall asleep under the first tree, or in the first cave that afforded them shelter; they invented several kinds of implements of hard and sharp stones, which they used to dig up the earth, and to cut wood; they then made huts out of branches, and afterwards learnt to plaster them over with mud and clay. This was the epoch of a first revolution, which established and distinguished families, and introduced a kind of property, in itself the source of a thousand quarrels and conflicts. As, however, the strongest were probably the first to build themselves huts which they felt themselves able to defend, it may be concluded that the weak found it much easier and safer to imitate, than to attempt to dislodge them: and of those who were once provided with huts, none could have any inducement to appropriate that of his neighbour; not indeed so much because it did not belong to him, as because it could be of no use, and he could not make himself master of it without exposing himself to a desperate battle with the family which occupied it.

The first expansions of the human heart were the effects of a novel situation, which united husbands and wives, fathers and children, under one roof. The habit of living together soon gave rise to the finest feelings known to humanity, conjugal love and paternal affection. Every family became a little society, the more united because liberty and reciprocal attachment were the only bonds of its union. The sexes, whose manner of life had been hitherto the same, began now to adopt different ways of living. The women became more sedentary, and accustomed themselves to mind the hut and their children, while the men went abroad in search of their common subsistence. From living a softer life, both sexes also began to lose something of their strength and ferocity: but, if individuals became to some extent less able to encounter wild beasts separately, they found it, on the other hand, easier to assemble and resist in common.

The simplicity and solitude of man's life in this new condition, the paucity of his wants, and the implements he had invented to satisfy them, left him a great deal of leisure, which he employed to furnish himself with many conveniences unknown to his fathers: and this was the first yoke he inadvertently imposed on himself, and the first source of the evils he prepared for his descendants. For, besides continuing thus to enervate both body and mind, these conveniences lost with use almost all their power to please, and even degenerated into real needs, till the want of them became far more disagreeable than the possession of them had been pleasant. Men would have been unhappy at the loss of them, though the possession did not make them happy.

We can here see a little better how the use of speech became established, and insensibly improved in each family, and we may form a conjecture also concerning the manner in which various causes may have extended and accelerated the progress of language, by making it more and more necessary. Floods or earthquakes surrounded inhabited districts with precipices or waters: revolutions of the globe tore off portions from the continent, and made them islands. It is readily seen that among men thus collected and compelled to live together, a common idiom must have arisen much more easily than among those who still wandered through the forests of the continent. Thus it is very possible that after their first essays in navigation the islanders brought over the use of speech to the continent: and it is at least very probable that communities and languages were first established in islands, and even came to perfection there before they were known on the mainland.

Everything now begins to change its aspect. Men, who have up to now been roving in the woods, by taking to a more settled manner of life, come gradually together, form separate bodies, and at length in every country arises a distinct nation, united in character and manners, not by regulations or laws, but by uniformity of life and food, and the common influence of climate. Permanent neighbourhood could not fail to produce, in time, some connection between different families. Among young people of opposite sexes, living in neighbouring huts, the transient commerce required by nature soon led, through mutual intercourse, to another kind not less agreeable, and more permanent. Men began now to take the difference between objects into account, and to make comparisons; they acquired imperceptibly the ideas of beauty and merit, which soon gave rise to feelings of preference. In consequence of seeing each other often, they could not do without seeing each other constantly. A tender and pleasant feeling insinuated itself into their souls, and the least opposition turned it into an impetuous fury: with love arose jealousy; discord triumphed, and human blood was sacrificed to the gentlest of all passions.
 

Perpetual Peace: A Philosophical Sketch
Immanuel Kant (1795)

(Click on link above for the text)