The operation of dangerous and delusive first principles obliges us to have recourse to the true ones. In the intercourse between nations, we are apt to rely too much on the instrumental part. We lay too much weight upon the formality of treaties and compacts. We do not act much more wisely, when we trust to the interests of men as guaranties of their engagements. The interests frequently tear to pieces the engagements, and the passions trample upon both. Entirely to trust to either is to disregard our own safety, or not to know mankind. Men are not tied to one another by papers and seals. They are led to associate by resemblances, by conformities, by sympathies. It is with nations as with individuals. Nothing is so strong a tie of amity between nation and nation as correspondence in laws, customs, manners, and habits of life. They have more than the force of treaties in themselves. They are obligations written in the heart. They approximate men to men without their knowledge, and sometimes against their intentions. The secret, unseen, but irrefragable bond of habitual intercourse holds them together, even when their perverse and litigious nature sets them to equivocate, scuffle, and fight about the terms of their written obligations. As to war, if it be the means of wrong and violence, it is the sole means of justice amongst nations. Nothing can banish it from the world. They who say otherwise, intending to impose upon us, do not impose upon themselves. But it is one of the greatest objects of human wisdom to mitigate those evils which we are unable to remove. The conformity and analogy of which I speak, incapable, like everything else, of preserving perfect trust and tranquillity among men, has a strong tendency to facilitate accommodation, and to produce a generous oblivion of the rancor of their quarrels. With this similitude, peace is more of peace, and war is less of war. I will go further. There have been periods of time in which communities apparently in peace with each other have been more perfectly separated than in later times many nations in Europe have been in the course of long and bloody wars. The cause must be sought in the similitude throughout Europe of religion, laws, and manners. At bottom, these are all the same. The writers on public law have often called this _aggregate_ of nations a commonwealth. They had reason. It is virtually one great state, having the same basis of general law, with some diversity of provincial customs and local establishments. The nations of Europe have had the very same Christian religion, agreeing in the fundamental parts, varying a little in the ceremonies and in the subordinate doctrines. The whole of the polity and economy of every country in Europe has been derived from the same sources. It was drawn from the old Germanic or Gothic Custumary,--from the feudal institutions, which must be considered as an emanation from that