1, the day after tomorrow, how many tomorrows!

2, young and old don't work hard, the boss is sad. -"Han Yuefu Long Songs".

We only live once in the world, so we should cherish our time. We must live a real life and a valuable life. -Pavlov.

4, an inch of time and an inch of gold, an inch of gold can not buy an inch of time. -broaden your horizons and be virtuous.

5, 10,000 years is too long, seize the day. Mao Zedong.

6. No matter how gluttonous time devours everything, we should strive to gain fame while this breath is still alive, so that the sickle of time can't hurt us. Shakespeare.

7. Don't always lament the past, it will never come back; Improve the present wisely. We must devote ourselves to the confusing future with a firm will that is not worried or afraid. -Longfellow.

8. Don't lament the passing years, but face up to the time that has slipped away in a hurry. Brecht.

9. When many people are hesitant on a road, they should give way to a road and let those who cherish time go ahead. Socrates.

10, the person who dares to waste even one hour shows that he still doesn't know how to cherish the full value of life. Darwin.

1 1. My life is limited, but so is my knowledge. -Zhuangzi, Chapter III: Health Preservation.

12, the light is still on at midnight. That is, when a person is studying, he doesn't know whether he is diligent early or not, and he regrets late when he is white. -Don Yan Zhenqing.

13, don't be idle, the teenager's head is white, empty and sad. -Yue Fei's "Man Jiang Hong".