1. If young people don’t work hard, old people will be sad. ——The vernacular translation of Han Yuefu's "Collection of Yuefu Poems·Long Song Xing" of the Han Dynasty: If you don't work hard when you are young and strong, it will be useless to be sad when you are old.

2. Black-haired people don’t know how to study diligently early, and white-haired people regret studying late. ——Tang Dynasty Yan Zhenqing's "Encouraging Learning" vernacular translation: When I was young, I only knew how to play and didn't know how to study hard. When I get old, I regret why I didn't know how to study hard when I was young.

3. Don’t wait any longer, as your young head turns gray and you feel so sad! ——Song Dynasty Yue Fei's "The River Is Red: Angry and Crowned" vernacular translation: Don't waste your years and grow gray as a young man, only to regret and mourn alone.

4. I advise you not to cherish your gold-threaded clothes, but to cherish your youth. If there are flowers, you must break them off. Don’t wait until there are no flowers. ——Tang Dynasty Anonymous "Golden Threaded Clothes" Vernacular translation: I advise you not to cherish the luxurious golden threaded clothes. I advise you to cherish your youth. When the flowers are blooming and it’s time to break them, you should hurry up and break them. Don’t wait until the flowers fade and only break an empty branch.

5. It is easier for a young person to learn than to become an old man, so you should not waste an inch of time. ——Vernacular translation of Zhu Xi's "Occurrence": The days of youth are easy to pass away, but it is difficult to succeed in learning, so every inch of time must be cherished and not let go easily.