“I began to sense faintly that secrecy is the keystone of all tyranny. Not force, but secrecy…censorship. When any government, or any church for that matter, undertakes to say to its subjects, “This you may not read, this you must not see, this you are forbidden to know,” the end result is tyranny and oppression, no matter how holy the motives. Mighty little force is needed to control a man whose mind has been hoodwinked; contrariwise, no amount of force can control a free man, a man whose mind is free. No, not the rack, not fission bombs, not anything—you can’t conquer a free man; the most you can do is kill him.”
If This Goes On— (p. 401)
Short fiction, The Past Through Tomorrow (1967)
Help us to complete the source, original and additional information
Robert A. Heinlein 557
American science fiction author 1907–1988Related quotes

Source: Diary and Autobiography of John Adams: Volumes 1-4, Diary (1755-1804) and Autobiography
Source: Crocodile on the Sandbank

Das Wesen der Materie [The Nature of Matter], a 1944 speech in Florence, Italy, Archiv zur Geschichte der Max‑ Planck‑ Gesellschaft, Abt. Va, Rep. 11 Planck, Nr. 1797; the German original is as quoted in The Spontaneous Healing of Belief https://archive.org/stream/GreggBradenTheSpontaneousHealingOfBelief/Gregg%20Braden/Gregg%20Braden%20-%20The%20Spontaneous%20Healing%20Of%20Belief#page/n1 (2008) by Gregg Braden, p. 212; Braden mistranslates intelligenten Geist as "intelligent Mind", which is an obvious tautology.

As quoted in The Early Years of the Saturday Club, 1855-1870 (1918) by Edward Waldo Emerson.

"The Address of the Southern and Western Liberty Convention" http://alexpeak.com/twr/libertyparty/saw/, in Anti-slavery Addresses of 1844 and 1845 by Salmon Portland Chase and Charles Dexter Cleveland, ed. C. D. C. (London: Sampson Low, Son, and Martson, 1867), pp. 75–125.

Political Science for Civil Services Main Examination (2010)

The Forgotten Man and Other Essays (corrected edition), “The Forgotten Man” 1883 http://oll.libertyfund.org/titles/sumner-the-forgotten-man-and-other-essays-corrected-edition?q=Civil+liberty+is+the+status#Sumner_1225_701.