Eternal vigilance is the price of liberty.
Wendell Phillips, (1811-1884), abolitionist, orator and columnist for The Liberator
in a speech before the Massachusetts Antislavery Society in 1852, according to The Dictionary of Quotations edited by Bergen Evans
The essence of Government is power; and power, lodged as it must be in human hands, will ever be liable to abuse.
James Madison (1751-1836)