Should it happen, however, that separate collectors of internal revenue should be appointed under the federal government, the influence of the whole … - Alexander Hamilton

The complete independence of the Courts of justice is peculiarly essential in a limited Constitution. By a limited Constitution, I understand one which contains certain specified exceptions to the Legislative authority; such, for instance, as that it shall pass no bills of attainder, no ex post facto laws, and the like. Limitations of this kind can be preserved in practice no other way than through the medium of the Courts of justice; whose duty it must be to declare all Acts contrary to the manifest tenor of the Constitution void. Without this, all the reservations of particular rights or privileges would amount to nothing.

It is essential to the idea of a law, that it be attended with a sanction; or, in other words, a penalty or punishment for disobedience. If there be no penalty annexed to disobedience, the resolutions or commands which pretend to be laws will, in fact, amount to nothing more than advice or recommendation. This penalty, whatever it may be, can only be inflicted in two ways: by the agency of the Courts and Ministers of Justice, or by military force; by the coercion of the magistracy, or by the coercion of arms. The first kind can evidently apply only to men: the last kind must, of necessity, be employed against bodies politic, or communities, or States.

A feeble Executive implies a feeble execution of the government. A feeble execution is but another phrase for a bad execution; and a government ill executed, whatever it may be in theory, must be, in practice, a bad government.