Black hair doesn't know what the main meaning of studying hard, learning early and regretting late is.

It means that you don't know how to study hard when you are young, and you regret learning too late when you are old. It is used to persuade young people to study hard as early as possible so as not to regret it in the future. Yan Zhenqing, a great calligrapher in the Tang Dynasty, wrote the following poem "Encouraging Learning".

Persuade sb. to study

Yan Zhenqing? the Tang Dynasty

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.

Midnight is the best time for boys to study every day. When I was a teenager, I only knew how to play and didn't know how to study hard. When I was old, I regretted why I didn't know how to study hard when I was young.

Extended data:

This poem is easy to understand and full of philosophy. The core is "black hair learns early, white hair learns late". As ambitious people, we should pay attention to taking time to study and cultivate our self-cultivation. The best time to study is in the third and fifth watch, and you should stick to reading in the morning. We should encourage young people not to waste time and study hard as soon as possible, hoping that people will pay attention to the day after tomorrow and strengthen their behavior cultivation. Yan Zhenqing lost his father at the age of 3, and his family came down. His mother Yin placed high hopes on him, implemented strict family education and personally supervised the school. Yan Zhenqing is also very studious and studies hard every day. This poem was written by Yan Zhenqing to encourage future generations.