Man’s bounden duty is to have the courage to explore the truth. ——Copernicus

The past belongs to Death, and the future belongs to you. ——Shelley

Always seek to benefit others, not yourself. ——Xie Juezai

The highest ideal in life is to seek the truth. ——Li Dazhao

A happy life is caused by happy thoughts. ——Newton

Serving the country will lead to thousands of deaths, and the temples will never be green again. ——Lu You

The road is long and far away, and I will search up and down. ——Qu Yuan

The past is forgotten like smoke, and the world is wide with selflessness in my heart. ——Tao Zhu

I hope that every time I recall it, I won’t feel guilty about life. ——Guo Xiaochuan

Youth is wonderful, and squandering youth is a crime. ——Bernard Shaw

Smile is a language with multiple meanings. ——Karl Spitler

Society is a mud pit, we have to stand on the high ground. ——Balzac