(Tang) Yan Zhenqing

Night light, five chickens,

It's time for men to read.

Black hair didn't know to study hard,

Bai Shoufang regrets studying late.

Precautions:

The cock crows at dawn.

Black hair-youth, refers to teenagers.

Whitehead-people are old, referring to the elderly.

Translation:

In the dead of night, when no one is bothering you, or when chickens crow at five o'clock and you are full of energy,

It is the best time for children to make progress and enrich their knowledge in reading.

When you are a teenager, if you only play, don't study hard and don't ask questions, you will lay a solid foundation.

When you are white-haired, you will regret wasting a good learning opportunity when you were young.

This poem warns us that if we don't study hard when we are young, it will be too late to study when we are old.