"The beauty of literature lies in its ability to transcend time and space."

The best armor of old age is a well-spent life perfecting it.

如果名分不正理论上便讲不通，理论上讲不通，事情便办不成；……因此，君子给某种事物起名字时，就一定要在理论上讲得通，在实践上就一定能行得通。