The purpose of the present paper is not to discuss the broad general subject of checks and balances in this, or any other, government. but to call attention to a few considerations only. These, in the main, affect the executive and the judiciary, rather than the legislature; and they will serve to show, perhaps, that neither of them can always, and under all circumstances, rely upon any very sure protection to its legitimate powers. It is one thing, unfortunately, to put intricate machinery in motion, and another, and quite a different, thing, to make it, under unforeseen occurrences, work out the intended results.
Cooley, Thomas M. "Some Checks and Balances in Government." Int'l Rev. 3 (1876): 317-34.