So how many time do you think-- you all have a piece of paper in front you-- how many time do you think you need to roll over the piece of paper ? for the piece of paper to reach the moon?

你们认为需要折多少次-,你们面前都有一张纸-,你们认为需要将纸折叠多少次,才能碰到月亮？

哈佛公开课 - 幸福课课程节选

Each of you, who is above 18 and is an American citizen, and was born in America above whatever it is, whatever the rule is, whatever the Constitution says), each of you can potentially stand up now and say you're going to run for president.

你们中每一个到了18岁的美国公民,并生在美国,大于不论几岁,不论规定是多少,不论宪法怎么规定,你们都可以站出来,参加总统竞选

耶鲁公开课 - 博弈论课程节选