The judiciary authority of the Union is to extend:
Second. To treaties made, or which shall be made, under the authority of the United States, and to all cases affecting ambassadors, other public ministers, and consuls. These belong to the fourth class of the enumerated cases, as they have an evident connection with the preservation of the national peace.
Third. To cases of admiralty and maritime jurisdiction. These form, altogether, the fifth of the enumerated classes of causes proper for the cognizance of the national courts.
Fourth. To controversies to which the United States shall be a party. These constitute the third of those classes.
Fifth. To controversies between two or more States; between a State and citizens of another State; between citizens of different States. These belong to the fourth of those classes, and partake, in some measure, of the nature of the last.
Sixth. To cases between the citizens of the same State, claiming lands under grants of different States. These fall within the last class, and are the only instances in which the proposed Constitution directly contemplates the cognizance of disputes between the citizens of the same State.
Seventh. To cases between a State and the citizens thereof, and foreign States, citizens, or subjects. These have been already explained to belong to the fourth of the enumerated classes, and have been shown to be, in a peculiar manner, the proper subjects of the national judicature.
From this review of the particular powers of the federal judiciary, as marked out in the Constitution, it appears that they are all conformable to the principles which ought to have governed the structure of that department, and which were necessary to the perfection of the system. If some partial inconveniences should appear to be connected with the incorporation of any of them into the plan, it ought to be recollected that the national legislature will have ample authority to make such exceptions, and to prescribe such regulations as will be calculated to obviate or remove these inconveniences. The possibility of particular mischiefs can never be viewed, by a wellinformed mind, as a solid objection to a general principle, which is calculated to avoid general mischiefs and to obtain general advantages.