1. It is like cutting and learning, like polishing - "The Book of Songs. Wei Feng. Qiao"
2. Learning is not about exploring the flowers, but digging out the roots - — Du Mu, Tang Dynasty, "Poems of Instructions to Master Cao"
3. Ten Years to Sharpen a Sword - Jia Dao, "Swordsman", Tang Dynasty
4. How can one be virtuous without an open mind - - Song Dynasty Wang Anshi's "Zhuge Wuhou"
5. Young people work hard all their lives, and don't waste time and effort. - Du Xunhe, Tang Dynasty Beginning of completion——Song Dynasty. Lu You's "Winter Night Reading Shows Ziyu"