A Treatise of Human Nature

private interest, than to public; and it is easily conceived how a man may impoverish himself by a signal instance of integrity, and have reason to wish, that with regard to that single act, the laws of justice were for a moment suspended in the universe. But however single acts of justice may be contrary, either to public or private interest, it is certain, that the whole plan or scheme is highly conducive, or indeed absolutely requisite, both to the support of society, and the well-being of every individual. It is impossible to separate the good from the ill. Property must be stable, and must be fixed by general rules. Though in one instance the public be a sufferer, this momentary ill is amply compensated by the steady prosecution of the rule, and by the peace and order, which it establishes in society. And even every individual person must find himself a gainer, on balancing the account; since, without justice society must immediately dissolve, and everyone must fall into that savage and solitary condition, which is infinitely worse than the worst situation that can possibly be supposed in society. When therefore men have had experience enough to observe, that whatever may be the consequence of any single act of justice, performed by a single person, yet the whole system of actions, concurred in by the whole society, is infinitely advantageous to the whole, and to every part; it is not long before justice and property take place. Every member of society is sensible of this interest: Everyone expresses this sense to his fellows, along with the resolution he has taken of squaring his actions by it, on condition that others will do the same. No more is requisite to induce any one of them to perform an act of justice, who has the first opportunity. This becomes an example to others. And thus justice establishes itself by a kind of convention or agreement; that is, by a sense of interest, supposed to be common to all, and where every single act is performed in expectation that others are to perform the like. Without such a convention, no one would ever have dreamed, that there was such a virtue as justice, or have been induced to conform his actions to it. Taking any single act, my justice may be pernicious in every respect; and it is only upon the supposition that others are to imitate my example, that I can be induced to embrace that virtue; since nothing but this combination can render justice advantageous, or afford me any motives to conform my self to its rules.

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We come now to the second question we proposed, viz. Why we annex the idea of virtue to justice, and of vice to injustice. This question will not detain us long after the principles, which we have already established, All we can say of it at present will be dispatched in a few words: And for farther satisfaction, the reader must wait till we come to the third part of this book. The natural obligation to justice, viz. interest, has been fully explained; but as to the moral obligation, or the sentiment of right and wrong, it will first be requisite to examine the natural virtues, before we can give a full and satisfactory account of it. After men have found by experience, that their selfishness and confined generosity, acting at their liberty, totally incapacitate them for society; and at the same time have observed, that society is necessary to the satisfaction of those very passions, they are naturally induced to lay themselves under the restraint of such rules, as may render their commerce more safe and commodious. To the imposition then, and observance of these rules, both in general, and in every particular instance, they are at first induced only by a regard to interest; and this motive, on the first formation of society, is sufficiently strong and forcible. But when society has become numerous, and has increased to a tribe or nation, this interest is more remote; nor do men so readily perceive, that disorder and confusion follow upon every breach of these rules, as in a more narrow and contracted society. But though in our own actions we may frequently lose sight of that interest, which we have in maintaining order, and may follow a lesser and more present interest, we never fail to observe the prejudice we receive, either mediately or immediately, from the injustice of others; as not being in that case either blinded by passion, or byassed by any contrary temptation. Nay when the injustice is so distant from us, as no way to affect our interest, it still displeases us; because we consider it as prejudicial to human society, and pernicious to everyone that approaches the person guilty of it. We partake of their uneasiness by sympathy; and as everything, which gives uneasiness in human actions, upon the general survey, is called Vice, and whatever produces satisfaction, in the same manner, is denominated Virtue; this is the reason why the sense of moral good and evil follows upon justice and injustice. And though this sense, in the present case, be derived only from contemplating the actions of others, yet we fail not to extend it even to our own actions. The general rule reaches beyond those instances, from which it arose; while at the same time we naturally sympathize with others in the sentiments they entertain of us. Thus self-interest is the original motive to the establishment of justice: but asympathywith public interest is the source of themoral approbation, which attends that virtue.

Though this progress of the sentiments be natural, and even necessary, it is certain, that it is here forwarded by the artifice of politicians, who, in order to govern men more easily, and preserve peace in human society, have endeavoured to produce an esteem for justice, and an abhorrence of injustice. This, no doubt, must have its effect; but nothing can be more evident, than that