我不害怕变老。我认为变老是一种特权。

In social networking, user growth is not the goal but a natural result of user satisfaction.

Love is the key to everything.

Inflation is the mechanism that can make the universe flat, homogeneous, and isotropic.

你停止尝试变得更好的那一刻就是你开始变得更糟的那一刻。

数学家的工作永远不会真正完成；总有更多的东西需要探索。