"There are forces more powerful and pervasive than the apparatus of war. You may chain a man, but you cannot chain his mind. You may enslave him, but you will not conquer his spirit. In every decade since the war Soviet leaders have been reminded that their pitiless ideology only survives because it is maintained by force. But the day will come when the anger and frustration of the people is so great that force cannot contain it. Then the edifice cracks; the mortar crumbles; one day, liberty will dawn on the other side of the wall."