1. If a young man does not work hard, the old man will be miserable. ——Han Dynasty - Anonymous "Yuefu Poems·Long Song Xing"

Translation: If you don't work hard when you are young and strong, it will be useless to be sad when you are old.

2. Days will never pass by in vain, youth will never come again. ——Tang Dynasty - Lin Kuan's "Youth Journey"

Translation: Don't waste your days in vain. Youth only comes once, and there will be no chance of it again.

3. An inch of time is worth an inch of gold, but an inch of gold cannot buy an inch of time. ——Tang Dynasty - "Two Poems from White Deer Cave" by Wang Zhenbai

Translation: Every inch of time is as precious as an inch of gold, but an inch of gold cannot buy an inch of time.

4. Tomorrow comes tomorrow, and there are so many tomorrows. ——Ming Dynasty - "Tomorrow's Song" by Qian Fu

Translation: Tomorrow is another tomorrow, how many tomorrows there are.

5. The lights are on at three and the chicken is on at five, which is when men are studying. ("Encouragement to Study" by Yan Zhenqing of the Tang Dynasty)

The best time for boys to study is from midnight to the time when the rooster crows. As a boy, you must know how to study hard and study diligently.

6. Black-haired people don’t know how to study diligently early, and white-haired people regret studying late. ("Encouraging Learning" by Yan Zhenqing of the Tang Dynasty)

But if you only know how to play and don't know how to study hard, you will only regret when you are old why you didn't know how to study hard when you were young. When you get older, you will regret why you didn't know how to study hard when you were young.

7. It is easier for a young person to learn than to become an old man, so you should not waste an inch of time.

("Occasionally" by Zhu Xi of the Song Dynasty)

It is very easy to pass away the days of youth, but it is difficult to achieve success in learning, so every inch of time must be cherished