1.
The true Enlightenment thinker, the true rationalist, never wants to talk anyone into anything. No, he does not even want to convince; all the time he is aware that he may be wrong. Above all, he values the intellectual independence of others too highly to want to convince them in important matters. He would much rather invite contradiction, preferably in the form of rational and disciplined criticism. He seeks not to convince but to arouse - to challenge others to form free opinions.
Karl Popper
2.
[We are] no longer a government by free opinion, no longer a government by conviction and the vote of the majority, but a government by the opinion and the duress of small groups of dominant men.
Woodrow Wilson
3.
The First Amendment isn't about free thought and free opinion and free belief. The First Amendment is about free exercise: the carrying into practice of religious principles and beliefs and convictions.
Alan Keyes
4.
We have come to be one of the worst ruled, one of the most completely controlled and dominated Governments in the world.
Woodrow Wilson
5.
Errors of opinion may be tolerated where reason is left free to combat it.
Thomas Jefferson
6.
It is not the Government, the members of Parliament to whom the ultimate decision belongs, it is up to you to go forward sure of your sacred right of free opinion, sure of your patriotism.
John Amery