1. There is no ordinary road on the avenue of science. Only those who climb on the rugged path without fear of hard work can hope to reach the glorious peak. ——Marx

2. Only when he has complete freedom of will to act can he be fully responsible for his actions. ——Marx

3. Social progress is the crystallization of human pursuit of beauty. ——Marx

4. Human happiness and our own perfection are not in conflict with each other. People can only achieve perfection by being perfect for their contemporaries and working for their happiness. ——Marx

5. The production mode of material life restricts the process of social life, political life and spiritual life. ——Marx

6. The brilliance of youth, the key to ideals, the meaning of life, and even human survival and development are all contained in these two words, struggle! Only struggle can heal the wounds of the past. Only struggle is the hope and light of our nation. ——Marx

7. Censorship, like slavery, can never be legal, even if it has existed as law more than a thousand times. ——Marx

8. It is in the world of transformed objects that people truly prove that they are species beings, and this kind of production is human active species life. ——Marx

9. All solid things have disappeared, all sacred things have been desecrated, and people finally have to calmly face the true situation of their lives and their mutual relationships. ——Marx

10. Self-abandonment is a poisonous snake that forever corrodes and gnaws at the soul. It sucks away the fresh blood of the soul and injects the poison of world-weariness and despair into it. ——Marx