There has been a revolution, then, but a silent one. It has taken place with such stealth, and so gradually, that people have become accustomed to it little by little. I am reminded of the famous Chinese executioner whose ambition it was to be able to cut off a head so that the victim would not realize what had happened. For years he worked on his skill, and one day he cut off a head so perfectly that the victim said: "Well, when are you going to do it?" The executioner gave a beatific smile and said: "Just kindly nod."