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. -Yan Zhenqing's Persuasion Poems

A year's plan lies in spring, and a day's plan lies in morning. -Southern Dynasties Liang Xiaoyi "Compilation"

Once the youth is gone, it will never come again, and you will never see the arrival of the next day. It's time for people to encourage themselves when they reach middle age. Time goes by and waits for no one. -Tao Yuanming's Miscellaneous Poems