“Opinion, we all instinctively feel, is vastly important for freedom. Nothing brings tyranny home to us so vividly as the stifling of opinion, and all the great political prisoners of history, from the Prisoner of Chillon down, have always boasted that their bodies might be in chains but their minds were free. That fact marks the superiority of a dungeon in the past over “liberty” in a modern totalitarian state.” (Jacques Barzun, Of Human Freedom)