The most advanced technology is useless if farmers don't trust it.

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.

I believe in the magic of Christmas.

我很有竞争力和雄心，但我没有成为第一的欲望。我只想做真正有趣的工作并挑战自己。