But the great security against a gradual concentration of the several powers in the same department consists in giving to those who administer each department the necessary constitutional means and personal motives to resist encroachments of the others. The provision for defense must in this, as in all other cases, be made commensurate to the danger of attack. Ambition must be made to counteract ambition.
Government is “the greatest of all reflections on human nature.”
Government is liable to the same failings of human nature and it must be enabled to self control.
Powers of government are divided between the three branches and each branch of government is able to check the ambitions of the others.