"Would you mind telling me, Doctor," Bob asked ..."how you detect a mental deficiency in somebody who appears completely normal?" "Nothing is easier," he replied. "You ask him a simple question which everyone should answer with no trouble. If he hesitates, that puts you on the track." " Well, What sort of question?" "Well, you might ask him, 'Captain Cook made three trips around the world and died during one of them. Which one?' Bob thought for a moment, and then said with a nervous laugh, "You wouldn't happen to have another example would you? I must confess I don't know much about history."
“医生,你能不能告诉我,”鲍勃问,“对于一个看上去很正常的人,你是怎样判断出他有智力缺陷的呢?”“再没有比这容易的了,”医生回答,“问他一个简单的问题,简单到所有人都知道答案,如果他回答得不干脆,那你就知道是怎么回事了。”“那要问什么样的问题呢?”“嗯,你可以这样问,‘库克船长环球旅行了三次,但是在其中一次的途中他去世了,是哪一次呢?’”鲍勃想了一会儿,紧张的回答道,“你就不能问另外一个问题吗?坦率地说,我对历史了解的不是很多。”