农民是最早的环保主义者，我们只需要给他们合适的工具。

数学的美只对那些更有耐心的追随者展示。

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.

【讲解】：发奋时候竟忘记吃饭，快乐时候就忘记了忧愁，把自己就要老了这件事也不放在心上，如此罢了。”

The study of algorithms is the study of methods for solving problems on a computer.

I'm the reason your dog can't bark.

The best architecture is the one that makes people happy.

历史不仅仅是关于过去；它是关于过去如何塑造未来。