(1) Advise people to cherish time.

I don't know how to study hard early, but I regret learning late.

It is easy for young people to learn, but difficult for old people. Every inch of time is an inch of light.

If a person doesn't work hard when he is young, he will regret when he is old ―― laziness when he is young will make him regret when he is old; Reckless youth makes regretful old age; Idle youth, poor old age

(2) warning people to be honest

1. If you don't have a strong will, you won't be wise. If you don't believe, you won't succeed. -Mo Zhai, Warring States thinker.

2. Internal and external correspondence, commensurate with words and deeds. —— Han Fei, philosopher and educator in the Warring States Period.

3. Goodness can't be imported, and fame can't be gained in vain. -Qu Yuan, a poet in the Warring States Period

4. Real people are sincere, insincere and not touching. -Zhuang Zhou, Warring States philosopher

People who don't keep their word are not famous. -Liu Xiang, a Confucian scholar in the Han Dynasty