1, with the lights on at night, it's time for men to study. -Don Yan Zhenqing's Persuasion
Midnight is the best time for boys to study every day. When they are young, they should know how to study hard and study hard.
2, young and old don't work hard, the boss is sad. -Han Yuefu's ancient poem "Long Songs"
If you don't work hard when you are young, you will achieve nothing when you are old. You will only be sad and regret it too late.
3, an inch of time and an inch of gold, an inch of gold is hard to buy. anonymous
An inch of time is worth an inch of gold, but an inch of gold cannot buy an inch of time.
My white hair accelerates my aging, just like the pale light beam that ends the old year. -Tang Meng Haoran, "On Returning to Zhongnanshan at the End of the Year"
The frequent appearance of white hair makes people get old, and the arrival of spring forces the old year to pass away.
If you don't come back in your prime, it's hard to get up in the morning. Wei and Jin Dynasties-Tao Yuanming's Miscellaneous Poems
Once youth is gone, it is impossible to come back and never see the next day.