"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."

“醫(yī)生，你能不能告訴我，”鮑勃問，“對于一個看上去很正常的人，你是怎樣判斷出他有智力缺陷的呢？”“再沒有比這容易的了，”醫(yī)生回答，“問他一個簡單的問題，簡單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?！薄澳且獑柺裁礃拥膯栴}呢？”“嗯，你可以這樣問，‘庫克船長環(huán)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？’”鮑勃想了一會兒，緊張的回答道，“你就不能問另外一個問題嗎？坦率地說，我對歷史了解的不是很多。”