Threats To Liberty Quotes by Thomas Jefferson, Eugene McCarthy, Margaret Thatcher, Harry S. Truman, Walter E. Williams, Thurgood Marshall and many others.

We hold these truths to be self-evident: that all men are created equal; that they are endowed by their Creator with certain unalienable rights; that among these are life, liberty, and the pursuit of happiness.
An efficient bureaucracy is the greatest threat to liberty.
When all the objectives of government include the achievement of equality – other than equality before the law – that government poses a threat to liberty.
Whenever any form of government becomes destructive of these ends [life, liberty, and the pursuit of happiness] it is the right of the people to alter or abolish it, and to institute new government.
Those who want the Government to regulate matters of the mind and spirit are like men who are so afraid of being murdered that they commit suicide to avoid assassination.
Of course, there are dangers in religious freedom and freedom of opinion. But to deny these rights is worse than dangerous, it is absolutely fatal to liberty.
Governments are instituted among Men, deriving their just powers from the consent of the governed
The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.
History teaches that grave threats to liberty often come in times of urgency, when constitutional rights seem too extravagant to endure.