“Power controlled or abridged is almost always the rival and enemy of that power by which it is controlled or abridged. This simple proposition will teach us how little reason there is to expect, that the persons intrusted with the administration of the affairs of the particular members of a confederacy will at all times be ready, with perfect good-humor, and an unbiased regard to the public weal, to execute the resolutions or decrees of the general authority. The reverse of this results from the constitution of human nature. If, therefore, the measures of the Confederacy cannot be executed without the intervention of the particular administrations, there will be little prospect of their being executed at all. The rulers of the respective members, whether they have a constitutional right to do it or not, will undertake to judge of the propriety of the measures themselves. They will consider the conformity of the thing proposed or required to their immediate interests or aims; the momentary conveniences or inconveniences that would attend its adoption. All this will be done; and in a spirit of interested and suspicious scrutiny, without that knowledge of national circumstances and reasons of state, which is essential to a right judgment, and with that strong predilection in favor of local objects, which can hardly fail to mislead the decision.”