2. The most difficult thing is to know yourself. ——Greece

3. Only those who have the courage to bear their fate are heroes. ——Hesse

4. Have sex with a brave person and read without words. ——Zhou Enlai

5. Reading makes people enriched, talking makes people agile, and writing makes people precise. ——Bacon

6. The greatest pride and the greatest inferiority both express the weakness of the soul. —— Spinoza

7. Self-knowledge is the most rare knowledge. ——Spain