1. Black-haired people don’t know how to study early, and white-haired people regret studying late.

2. Time passes easily, and no one can control it at all.

3. If young people don’t work hard, old people will be sad.

4. Time is like water in a river, it can only flow away but not back.

5. My life has a limit, but my knowledge has no limit.

6. One day can miss a spring, and ten years can miss a generation.

7. Those who fight against time face an invulnerable opponent.

8. Tomorrow comes tomorrow, and there are so many tomorrows. If I wait for tomorrow, everything will be wasted.

9. Time is the criterion for measuring career.

10. Winter passes and spring comes again, and time flows like water.

11. Flowers are similar every year, but people are different every year. 12. Flowers will bloom again, and people will never be young again.

13. How many days can the flowers bloom on the branches, and how many days can there be in the world.

14. Seize every minute of reality better than a year in imagination.

15. A snoozing cat will never catch a mouse, and a person who wastes time will not gain anything.

16. Take advantage of every opportunity and fight for every opportunity.

17. The prime years will never come again, and the morning will never come again. Be encouraged in time, time waits for no one.

18. People with lofty ideals cherish the short days, but worry about others knowing that the nights are long.

19. Tap water is squeezed out, and time is squeezed out.

20. Time passes and it’s hard to see it again, and the water flowing through the East China Sea never looks back