What calligraphy works should be posted in the classroom?

Calligraphy works that encourage students to study hard.

For example:

1, don't waste time, always do something useful and quit all unnecessary behaviors.

Time is the most precious thing in all things, but if it is wasted, it is the biggest waste.

3. Knowledge is like candlelight, which can illuminate one person and countless people.

4, black hair does not know how to study hard early, Bai Shoufang regrets studying late.

If you don't want to waste your life in the world, you must study your life.

6, the industry is good at diligence, barren in fun, and ruined by thinking.

7. Time is gone forever, and it is hard to give up your career.

8. Don't sigh for the lost years, but face up to the time you want to slip away in a hurry.

9. Cherishing time can make life more valuable.

10, get up early in the morning, go to bed late at night, get old easily, cherish this time.