“Repressive societies always seemed to understand the danger of "wrong" ideas.”

“The teaching of mathematics,” p. 71-72
On Science, Necessity, and the Love of God (1968)
Context: My purpose here is to denounce an idea which seems to be dangerous and false. … Revolutionary trade unionists and orthodox communists are at one in considering everything that is purely theoretical as bourgeois. … The culture of a socialist society would be a synthesis of theory and practice; but to synthesize is not the same as to confuse together; it is only contraries that can be synthesized. … Marx’s principal glory is to have rescued the study of societies not only from Utopianism but also and at the same time from empiricism. … Humanity cannot progress by importing into theoretical study the processes of blind routine and haphazard experiment by which production has so long been dominated. … The true relation between theory and application only appears when theoretical research has been purged of all empiricism.

1770, p. 181
Life of Samuel Johnson (1791), Vol II

Source: Postcards from Ed: Dispatches and Salvos from an American Iconoclast

Act IV
The Bending of the Bough (1900)

"The Rise and Fall of the City" (23 November 2005) at the Ludwig von Mises Institute http://www.mises.org/story/1959

Please Use Your Liberty to Promote Ours (1997)
Context: Those of us who decided to work for democracy in Burma made our choice in the conviction that the danger of standing up for basic human rights in a repressive society was preferable to the safety of a quiescent life in servitude. Ours is a nonviolent movement that depends on faith in the human predilection for fair play and compassion.
Some would insist that man is primarily an economic animal interested only in his material well-being. This is too narrow a view of a species which has produced numberless brave men and women who are prepared to undergo relentless persecution to uphold deeply held beliefs and principles. It is my pride and inspiration that such men and women exist in my country today.

Speech at the National Press Club (2004)
Context: An open society is always in danger. It must constantly reaffirm its principles in order to survive. We are being sorely tested, first by 9/11 and then by President Bush's response. To pass the test we must face reality instead of finding solace in false certainties. This election transcends party loyalties. Our future as an open society depends on resisting the Siren's song.