I do not lack the courage to think a thought all the way through, and thus far I have encountered no thought that I have feared.

Sometimes you put walls up not to keep people out，but to see who cares enough to break them down.

Every mathematical problem has a solution; sometimes it just takes time to find it.

勇气并不意味着你不害怕，而是你不让恐惧阻止你。

投资你的团队就是投资你公司的未来。