Yes. From "Climbing the Stork Tower" written by Wang Zhihuan, a poet of the Tang Dynasty: "When hundreds of rivers reach the sea from the east, when will they return to the west? If a young man does not work hard, an old man will be sad." It means that hundreds of rivers will lead to sorrow. Rushing into the sea, when can we return to the west again? If we don’t work hard when we are young, we can only lament in vain when we are old. It warns people to cherish time, seize opportunities when they are young, work hard, and not let time pass in vain and regret for the rest of their lives.