Said by: Yuefu Poems, Hege, Long song.
2, the light is midnight chicken, it is the time for men to study.
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.
From: Yan Zhenqing's Persuasion
If you don't come back in the prime of life, it will be difficult to get up in the morning. It's time for people to encourage themselves when they reach middle age. Time goes by and waits for no one.
From: Tao Jin's Yuan Ming Za Poems.