It can apply the resources and power of the whole to the defense of any particular part, and that more easily and expeditiously than State government… - Alexander Hamilton

The legislative department derives a superiority in our governments from other circumstances. Its constitutional powers being at once more extensive, and less susceptible of precise limits, it can, with the greater facility, mask, under complicated and indirect measures, the encroachments which it makes on the co-ordinate departments. It is not unfrequently a question of real nicety in legislative bodies, whether the operation of a particular measure will, or will not, extend beyond the legislative sphere. On the other side, the executive power being restrained within a narrower compass, and being more simple in its nature, and the judiciary being described by landmarks still less uncertain, projects of usurpation by either of these departments would immediately betray and defeat themselves. Nor is this all: as the legislative department alone has access to the pockets of the people, and has in some constitutions full discretion, and in all a prevailing influence, over the pecuniary rewards of those who fill the other departments, a dependence is thus created in the latter, which gives still greater facility to encroachments of the former. I

From a deficiency in this particular, one of two evils must ensue; either the people must be subjected to continual plunder, as a substitute for a more eligible mode of supplying the public wants, or the government must sink into a fatal atrophy, and, in a short course of time, perish.

Safety from external danger is the most powerful director of national conduct.