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CHAP. IV. the society of nations is governed by Natural Law, the atoms which compose it must be absolutely equal. Men under the sceptre of Nature are all equal, and accordingly commonwealths are equal if the international state be one of nature. The proposition that independent communities, however different in size and power, are all equal in the view of the law of nations, has largely contributed to the happiness of mankind, though it is constantly threatened by the political tendencies of each successive age. It is a doctrine which probably would never have obtained a secure footing at all if International Law had not been entirely derived from the majestic claims of Nature by the Publicists who wrote after the revival of letters.

On the whole, however, it is astonishing, as I have observed before, how small a proportion the additions made to international Law since Grotius's day bear to the ingredients which have been simply taken from the most ancient stratum of the Roman Jus Gentium. Acquisition of territory has always been the great spur of national ambition, and the rules which govern this acquisition, together with the rules which moderate the wars in which it too frequently results, are merely transcribed from the part of the Roman law which treats of the modes of acquiring property jure gentium. These modes of acquisition were obtained by the elder jurisconsults, as I have attempted to