成功不是幸福的关键。幸福才是成功的关键。
Success is not the key to happiness. Happiness is the key to success.
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
有时候最难的事就是什么也不做。
历史研究不仅关乎过去，也关乎理解现在和塑造未来。
一个父亲能为孩子做的最重要的事就是爱他们的母亲。