This is the night when the lights are turned on at five o'clock. That is, when a person is studying, he doesn't know whether he is diligent or not, and his white hair regrets being late. -Yan Zhenqing

Time is life, time is speed, and time is power. —— Guo Moruo

Time is life, wasting other people's time for no reason is tantamount to killing people for money. -Lu Xun

There is a long time between today and tomorrow; Learn to do things quickly while you are still full of energy. -Goethe

Don't be easy, white-headed and sad. . -Yue Fei