Although there is no sweat, no sleep and no frost, I have been influenced by fireflies.
What's so charming? Apricot blossoms and eight laurels in February/Who urges me? The lights are on at night and the chickens are on at night.
Tao Yuanming in the Eastern Jin Dynasty
The prime of life no longer comes, and it will be difficult to wake up one day.
Timely encouragement, time waits for no one.
Tang Yan advised ZhenQing to study.
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.