马克·吐温是一位美国作家.一天,他坐火车去一个城市,要在那儿探望一个朋友他是一个很忙的人,经常会忘记一些事情.当他上了火车,列车员要看他的车票.马克·吐温到处找票,但是没找着.这位列车员认识马克·吐温,他说：“如果你找不到,也没什么关系的.在你回来时让我看看你的票.”“哦不可以”,马克吐温说,“我必须找到车票,如果我找不到它,我怎么知道我要去哪儿啊?”
Mark Twain is an American writer.One day,he went to a city,the train to visit a friend in there,he is a very busy man,often forget things.When he got on the train,conductor to see his ticket.Mark Twain looked everywhere for tickets,but could not find him.The conductor know Mark Twain,he said:"if you find nothing,in the relationship.When you come back,let me see your ticket." "Oh can't",Mark Twain said,"I must find the ticket,if I find it,how do I know where I am going?"