The Declaration of Independence laid down the principle that “to secure these rights, governments are instituted among men.” This provided the only valid justification of a government and defined its only proper purpose: to protect man’s rights by protecting him from physical violence.

Thus the government’s function was changed from the role of ruler to the role of servant. The government was set to protect man from criminals—and the Constitution was written to protect man from the government.

- Ayn Rand. Capitalism: The Unknown Ideal (1966).