1. Li Bai's "Traveling is Difficult": There will be times when the wind breaks through the waves, and you can hang your sails directly across the sea.
2. Zheng Xie's "Bamboo and Stone": He insists on not letting go of the green mountains, and his roots are still in the broken rocks. It has endured thousands of blows but is still strong, regardless of the winds from east to west, north and south.
3. Lu You's "Winter Night Reading Shows Ziyu": The ancients spared no effort in learning, and it was only when they were young that they were able to achieve success. What I have learned on paper is ultimately shallow, and I know that I have to do it in detail.
4. Wang Zhu's "Study Diligently": Diligence in learning leads to success, and there are thousands of books in the window. Three winters are enough now, who laughs with an empty stomach.