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
When the people fear their government, there is tyranny; when the government fears the people, there is liberty.
Thomas Jefferson (1743-1826)