最终，我们记住的不是敌人的话语，而是朋友的沉默。

I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.

领导力在于创造一个让人们感到有能力冒险并从失败中学习的环境。

The lightning that precedes the thunder is a common image of the warnings that come before calamity.

心理过程是在生存斗争中的手段。