不要担心别人不理解你，要担心你不理解别人。
Don’t worry about others not understanding you. Worry about you not understanding others.
The world owes all its onward impulses to men ill at ease; the happy man inevitably confines himself within ancient limits.
书是一面镜子：如果一只猿猴往里看，使徒不太可能往外看。
An empire founded by war has to maintain itself by war.
The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.
有时候，我们无法改变的事情最终改变了我们。