1. Black-haired people don’t know how to study early, and white-haired people regret studying late. ?——"Poem to Encourage Learning" by Yan Zhenqing of the Tang Dynasty

Translation: But if you only know how to play and don't know how to study hard, you will regret when you are old why you didn't know how to study hard when you were young.

2. If you only die for your country on the battlefield, why should you return your body wrapped in horse leather? ?—— "Out of the Fortress" by Xu Xilin of the Song Dynasty

Translation: Soldiers only know that on the battlefield, they have to sacrifice their lives for the country. Why even think about transporting the body back home.

3. The ancients spared no effort in their knowledge, and only when they are young and old can they achieve success. ?——"Winter Night Reading to Show Ziyu" by Lu You of the Song Dynasty

Translation: The ancients spared no effort in learning, and often did not achieve success until old age.

4. What you learn on paper will eventually make you realize it, but you will definitely know that you have to do it in detail. ?—— Song Lu You's "Winter Night Reading Shows Ziyu"

Translation: The knowledge obtained from books is not perfect after all. If you want to deeply understand the truth, you must practice it yourself.

5. Reading is already late, and every inch of time is worth every inch of gold. ?——"Two Poems from White Deer Cave, One" by Wang Zhenbai of the Tang Dynasty

Translation: Concentrate on reading, and before you know it, spring is over, and every inch of time is as precious as an inch of gold.