Secrecy is the keystone to all tyranny. Not force, but secrecy and censorship. When any government or church for that matter, undertakes to say to its subjects, "This you may not read, this you must not know," the end result is tyranny and oppression, no matter how holy the motives. Mighty little force is needed to control a man who has been hoodwinked in this fashion; contrariwise, no amount of force can control a free man, whose mind is free. No, not the rack nor the atomic bomb, not anything. You can't conquer a free man; the most you can do is kill him.
Robert A. HeinleinWhat are the facts? Again and again and again โ what are the facts? Shun wishful thinking, ignore divine revelation, forget what โthe stars foretell,โ avoid opinion, care not what the neighbors think, never mind the unguessable โverdict of historyโ โ what are the facts, and to how many decimal places? You pilot always into an unknown future; facts are your single clue. Get the facts!
Robert A. Heinlein