Hume and the Future of the Society of Nations

46. HUME AND THE FUTURE OF THE SOCIETY OF NATIONS In the section of Hume's Treatise of Human Nature entitled Of the laws of nations (Section XI of Book III) he says: Political writers tell us, that in every kind of intercourse, a body politic is to be consider 'd as one person; and indeed this assertion is so far just, that different nations, as well as private persons, require mutual assistance; at the same time that their selfishness and ambition are perpetual sources of war and discord.But tho' nations in this particular resemble individuals, yet as they are very different in other respects, no wonder they regulate themselves by different maxims, and give rise to a new set of rules, which we call the laws of nations. 1 He goes on to give examples of such laws:the sacredness of the persons of ambassadors, the declaration of war, the abstaining from poison'd arms, with other duties of that kind, which are evidently calculated for the commerce, that is peculiar to different .societies. (T 567) Hume then tells us in the next paragraph that such laws of nations may be added to the three laws of nature (that possessions should be stable, that possessions should be transferable by consent, and that promises or contracts should be kept) but that these laws of nations do not supersede the laws of nature; that is, they do not make the laws of nature irrelevant to relations among nation-states. In fact, the morality among nation-states involves the same kinds of obligations as morality among private persons, but the obligations are not as binding. The obligations of nation-states to each other can more readily be overridden by concerns of self-interest than would be legitimate in the case of private persons because nation-states are more nearly able to maintain themselves without external assistance than are individual persons. In Hume's words, ... tho' the 47. morality of princes has the same extent, yet it has not the same force as that of private persons (T 558) because tho' the intercourse of different states be advantageous, and even sometimes necessary, yet it is not so necessary nor advantageous as that among individuals, without which 'tis utterly impossible for human nature ever to subsist. (T 569) In the last paragraph of this section Hume addresses himself to the question of the proportion these two species of morality bear to each other. (T 569) He says that we can never give any precise answer (T 569) and that the proper proportion is exhibited in the actual practice of the world. He takes this fact as showing that all men recognize that the rules of morality, both among private individuals and among nation-states, arise from human conventions, and from the interest, which we have in the preservation of peace and order. (T 569) When discussing the same issue in his Enquiry concerning the Principles of Morals Hume is more succinct . The observance of justice, though useful among them [nations], is not guarded by so strong a necessity as among individuals; and the moral obligation holds proportion with the usefulness . 2 """ The moral obligations of individuals to each other is thus greater than that of nations to each other because keeping the rules of justice is inore useful in the former case than in the latter. But Hume did not live in an age of atomic weapons, long-range missiles, and precision-guided munitions. Furthermore, the nations of the world are now much more interdependent than in his day, not only with regard to where they get the resources they need but also with regard to what they do with their wastes. There seems to be little roo.? _or dtubt that the utility of following the rules of justice among nations is much greater now than it was in the eighteenth 48. century. Since a nuclear war might mean the end of the human species, the utility of justice among nations seems to be approaching, perhaps even surpassing, the utility which moral rules have at the level of private persons. In view of this changed situation, I intend to review what Hume has...