1. Be poor and strong, and never fall into the clouds. Drinking from the greedy spring makes you feel refreshed, and you still feel happy when you are in a dry road. ——"Preface to Prince Teng's Pavilion" by Wang Bo of the Tang Dynasty

2. There will be times when the wind and waves break, and the cloud sails will be hung directly to help the sea. ——Li Bai of the Tang Dynasty, "The Road Is Difficult"

3. Failure is the mother of success - An anonymous person in the Warring States Period, "Gun and Yu Controlled the Floods"

4. Difficulties and torture are the same for people. The hammer that hits the blank should knock off the fragile iron filings, and what will be forged into a sharp steel knife. ——Russian Chekhov

5. The goal is set. No matter what difficulties and twists and turns you encounter in the process of learning and practice, you will not be discouraged. You will not easily change your goals and work hard to learn. and struggle, only in this way can you achieve something and achieve your goals. ——Wu Yuzhang in modern times