1. Seeds do not fall on fertile soil but on rubble. Viable seeds will never be pessimistic and sigh, because only with resistance can they be tempered. ——Xia Yan's "Weeds"

2. There is permanence in precious things, so why bother to sleep at the third watch and the fifth watch? The most useless thing is to be exposed to the cold for ten days in one day. ——Mao Zedong's "Quotations of Mao Zedong"

3. One of the great advantages of outstanding people is that they are unyielding in adverse and difficult encounters. ——Beethoven's "Beethoven's Quotations"

4. The idea that it will always be smooth sailing and success will be easy without going through hardships and twists and making great efforts is just a fantasy. ——Mao Zedong's "Quotations of Mao Zedong"

5. What the world lacks is perseverance, not strength. ——Hugo "Les Misérables"

6. No matter when or what situation I encounter, I will never allow myself to be a little bit discouraged. ——Edison's "Edison Biography"

7. A great career is rooted in perseverance and continuous work, engaged in with full energy, and not avoiding hardships. ——Russell's "The Road to Freedom"