1. The prime years will never come again, and it is difficult to come back in the morning. You should be encouraged in time. Time waits for no one. (Tao Yuanming)

2. Sail against the current with all your strength, and you will be able to retreat thousands of miles away with a single pole. As the ancient saying goes, "This day is a pity." We should cherish the seconds even more. (Dong Biwu)

3. If we want to live, we should build ourselves a clock full of feelings, thoughts and actions, and use it to replace this boring, monotonous, soul-killing clock with depression. Reproach and time ticking coldly.

4. In everything, you must work down-to-earth, do not indulge in daydreams, do not dwell on false claims, but work hard with an attitude of seeking truth.

5. If you study with this attitude, you can understand the truth, and if you work with this attitude, you can achieve success. (Li Dazhao)

6. The way to complete the work is to cherish every minute. (Darwin)

7. Arranging time reasonably is equivalent to saving time. (Bacon)

8. One of the biggest dangers in doing things is to seek too much speed.

(Bacon)