译文：我衰老得太厉害了!感慨平生交游的朋友渐渐零落，如今还剩下几个?白发空自垂下三千丈，对人间万事只能付之一笑。试问什么事物能让我真正欢喜?

I think as technologists we should have some safe places where we can try out new things and figure out the effect on society.

做好准备。当你完成任何大型项目（房子、电影、活动、App）的90%时，其余无数的细节将需要第二个90%来完成。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

This quote reflects his view on embracing uncertainty in life's choices.

历史学家是反向的先知。