只要是利益他人的事情，就要坚持做下去；只要是不利于别人的事情，就要马上停止不做。

Fear is a natural response, but courage is a choice. Choose to be brave.

我很幸运，无论内心有什么恐惧，我对胜利的渴望总是更强烈。

I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.

Civilization will perish without forests.