1. For people, difficulties and torture are like a hammer hitting a blank. What should be knocked off are fragile iron filings, and what will be forged into a sharp steel knife. ——Chekhov

2. Pride cannot last, desire cannot be indulged, happiness cannot be extreme, and ambition cannot be fulfilled. ——Wei Zheng

3. When no one is applauding, we should not give up our efforts and learn to applaud ourselves.

4. Things that are originally hopeless can often succeed if you try boldly. ——Shakespeare

5. Time is my property, and my land is time. ——Goethe

6. Only by turning complaints about the environment into a force for progress is the guarantee of success. ——Romain Rolland