1. an inch of time is worth an inch of gold, but an inch of gold can't buy an inch of time.

2. There will be many tomorrows.

wait for tomorrow, and everything will be wasted.

3. Advise you not to cherish the golden gowns, and advise you to cherish your youth.

black hair doesn't know how to study early, while white head hates studying late.

4. Don't be idle, it's white-headed and sad.

5. the sky can be mended, the sea can be filled, and the south mountain can be moved. the sun and the moon are gone, and they cannot be chased again.