Who is the author of the poem "Night Lights and Chickens"? When a person reads black hair, but doesn't know how to be diligent and white, he regrets reading it late.

This is the Poem of Persuasion by Yan Zhenqing, a calligrapher in Tang Dynasty. The whole poem is as follows:

Poems to persuade students to study

Don Yan Zhenqing

Every day when the cock crows, it is the best time for boys to read.

Teenagers only know how to play, but don't know how to study hard. When they are old, they regret why they didn't know how to study hard when they were young.

translate

Midnight is the best time for boys to study every day.

When you are a teenager, you should know how to study hard and study hard. But if you only play and don't study hard, you will regret why you didn't study hard when you were young.