Calm is contagious.

用户要的不是技术，用户要的是更好的体验。

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.

数学的本质在于它的自由。

真相并不总是美丽的，美丽的言辞也不一定是真相。

一个人的价值不应该用他最坏的那天来衡量。

小说是一面镜子，不仅反映世界，也反映读者的灵魂。