like all other laws, be ascertained by judicial determinations. To produce uniformity in these determinations, they ought to be submitted, in the last resort, to one supreme tribunal. And this tribunal ought to be instituted under the same authority which forms the treaties themselves. These ingredients are both indispensable. If there is in each State a court of final jurisdiction, there may be as many different final determinations on the same point, as there are courts. There are endless diversities in the opinions of men. We often see not only different courts, but the Judges of the same court differing from each other. To avoid the confusion which would unavoidably result from the contradictory decisions of a number of independent judicatories, all nations have found it necessary to establish one court paramount to the rest, possessing a general superintendence, and authorized to settle and declare in the last resort a uniform rule of civil justice.
This is the more necessary where the frame of the Government is so compounded that the laws of the whole are in danger of being contravened by the laws of the parts. In this case, if the particular tribunals are invested with a right of ultimate jurisdiction, besides the contradictions to be expected from difference of opinion, there will be much to fear from the bias of local views and prejudices, and from the interference of local regulations. As often as such an interference was to happen, there would be reason to apprehend that the provisions of the particular laws might be preferred to those of the general laws; for nothing is more natural to men in office than to look with peculiar deference towards that authority to which they owe their official existence. The treaties of the United States, under the present Constitution, are liable to the infractions of thirteen different Legislatures, and as many different courts of final jurisdiction, acting under the authority of those
