1. Tribulation and hardship are the highest institutions of learning for tempering one’s character. ——Socrates

2. If you don’t know pain, you are not a good man. ——Hugo

3. Never be ashamed of admitting your mistakes, because admitting your mistakes can also mean that you are smarter today. ——Maro

4. Defeating yourself is the most tragic failure, defeating yourself is the most valuable victory. ——Anonymous

5. Books are not only life, but also the source of cultural life in the present, past and future. ——Kufayev