The resources we extract must be matched by the value we create for society.

强调历史研究既要理解历史背景，又要保持学术批判性。

做你自己，没有人比你更好。

"The key to success is to focus our conscious mind on things we desire, not things we fear."

人生不能像做菜，把所有的料都准备好了才下锅。