1. The most serious waste is the waste of time. ——Fa?Bufeng

2. The most unaffordable thing to waste is time. ——Chinese Ding Zhaozhong

3. The world is turning and time is pressing. Ten thousand years is too long, just seize the day. ——Mao Zedong's "Man Jiang Hong·And Comrade Guo Moruo"

4. It is better to study early if you have black hair, and regret studying later if you have gray hair. ——"Encouraging Learning" by Yan Zhenqing of the Tang Dynasty

5. If a young man does not work hard, the old man will be sad. ——"Long Song Xing"

6. The prime years will never come again, and it will be difficult to morning again. Be encouraged in time, time waits for no one. ——Jin Dynasty Tao Yuanming's "Miscellaneous Poems"

7. If there are flowers, you must break them. Don't wait until there are no flowers. ——Tang Dynasty's "Golden Threaded Clothes"

8. The plan for a day lies in morning, the plan for a year lies in spring, and the plan for life lies in diligence. ——Proverb

9. Tomorrow comes tomorrow. There are so many tomorrows. If I live waiting for tomorrow, everything will be wasted. ——Ming Dynasty Qian Fu's "Song of Tomorrow"

10. Don't wait for a while, the young man's head will turn gray, and it will be so sad! ——Song Yue Fei's "Man Jiang Hong·Written on the Heart"

11. The more a person knows the value of time, the more painful it is to lose time! ——Dante, Italy

12. Those who abandon time, time also abandons him. ——British Shakespeare

13. The situation waits for no one, and the old man's hair becomes silk. ——Li Bai of the Tang Dynasty, "Two Poems on the Road to Encounter"

14. Time is like water in a sponge. As long as you are willing to squeeze, you will always have it. ——Lu Xun

15. If there is a gap between heaven and earth in life, it will happen suddenly. ——Zhuangzi