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Never get involved in a land war in Asia.

"Children need stories to help them navigate the complexities of life."

The true power of mathematics lies in its ability to simplify the complex, making the incomprehensible understandable.

譯文：天上的風云變化無常，不可預測，人間的事情難以估量，大多互相抵觸。賞析：很多事情很難得到別人的認同和理解，只要我們問心無愧，行得正，不一定要在乎別人的言辭和態度。