1. Practice will solve those problems that cannot be solved by theory. ——Feuerbach

2. Intelligence is the daughter of practice. ——Leonardo Da Vinci

3. Not hearing is worse than hearing it, hearing it is worse than seeing it, seeing it is worse than knowing it, and knowing it is worse than doing it. ——Xun Kuang (Warring States Period)

4. What you hear with your ears is not as good as seeing it, what you see with your eyes is not as good as practicing it with your feet, and what you are practicing is not as good as discerning it with your hands. ——Liu Xiang (Han)

5. All theoretical laws depend on practical laws; if there is only one practical law, then they all depend on this practical law. ——Fichte

6. Practice "takes the objective world as the premise, and the objective world as something else walks its own path." ——Hegel

7. Practice “not only has universal qualifications, but also has absolute realistic qualifications.” ——Hegel

8. What you learn on paper will eventually make you realize it is shallow, but you will definitely know that this matter must be carried out. ——Lu You (Song Dynasty)

9. Everything that must be debated in theory should be solved simply with the practice of real life. ——Chernyshevsky