The framers of the Constitution had learned the lesson. They were not only students of history, but victims of it: they knew from vivid, personal experience that freedom depends on effective restraints against the accumulation of power in a single authority. And that is what the Constitution is: _a system of restraints against the natural tendency of government to expand in the direction of absolutism_. We all know the main components of the system. The first is the limitation of the federal government’s authority to specific, delegated powers. The second, a corollary of the first, is the reservation to the States and the people of all power not delegated to the federal government. The third is a careful division of the federal government’s power among three separate branches. The fourth is a prohibition against impetuous alteration of the system--namely, Article V’s tortuous, but wise, amendment procedures. Was it then a _Democracy_ the framers created? Hardly. The system of restraints, on the face of it, was directed not only against individual tyrants, but also against a tyranny of the masses. The framers were well aware of the danger posed by self-seeking demagogues--that they might persuade a majority of the people to confer on government vast powers in return for deceptive promises of economic gain. And so they forbade such a transfer of power--first by declaring, in effect, that certain activities are outside the natural and legitimate scope of the public authority, and secondly by dispersing public authority among several levels and branches of government in the hope that each seat of authority, jealous of its own prerogatives, would have a natural incentive to resist aggression by the others. But the framers were not visionaries. They knew that rules of government, however brilliantly calculated to cope with the imperfect nature of man, however carefully designed to avoid the pitfalls of power, would be no match for men who were determined to disregard them. In the last analysis their system of government would prosper only if the governed were sufficiently determined that it should. “What have you given us?” a woman asked Ben Franklin toward the close of the Constitutional Convention. “A Republic,” he said, “_if you can keep it_!”