爱是感官的诗篇。

I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.

I don't believe in diversification. I prefer to concentrate on a few good ideas.

"Always be learning. The world is constantly changing, and you need to keep up."

可持续发展不仅仅是一种趋势，更是我们对后代的责任。#

数学的进步是通过它能解决的问题数量来衡量的。

真正的革命是改变人心的革命。

无畏不是没有恐惧。不是完全不害怕。无畏是有恐惧。无畏是有怀疑。很多怀疑。无畏是尽管有这些，依然每天生活。

世界不缺钱，缺的是有梦想的企业家。

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.