我希望，30年后你们还会再回到哈佛，想起你们用自己的天赋和能力所做出的一切。我希望，在那个时候，你们用来评价自己的标准，不仅仅是你们的专业成就，而包括你们为改变这个世界深刻的不平等所做出的努力，以及你们如何善待那些远隔千山万水、与你们毫不相干的人们，你们与他们唯一的共同点就是同为人类。
And I hope you will come back here to Harvard 30 years from now and reflect on what you have done with your talent and your energy. I hope you will judge yourselves not on your professional accomplishments alone, but also on how well you have addressed the world's deepest inequities…on how well you treated people a world away who have nothing in common with you but their humanity.
自由民主的未来取决于其适应新挑战并维持公民支持的能力。
科学不仅仅是寻找答案，更是提出正确的问题。
Words are, in my not-so-humble opinion, our most inexhaustible source of magic.
The best way to predict the future is to create it.
通货膨胀是一种货币现象，但也受到实际因素的影响，比如经济中供需的平衡。
跑步不是要比别人好，而是要比过去的自己更好。
