Bishop Hanns Lilje writes with compassion of the men who were his guards while he was a prisoner of the Nazis during World War II. He tells of one pitiable old man whose job it was, among other things, to fasten his fetters before he went to sleep at night. One evening after he finished this task, the prisoner found himself unable to resist saying to him in a very polite and courteous voice, "Thank you very much." The old …