The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
To be a good writer, you have to be a good reader first.
缺乏美感的理论不太可能是正确的。
Life is too short to waste time hating anyone.
One of the greatest ways to avoid trouble is to keep it simple...the system often goes out of control.