1. The sill of the flat mountain leans against the clear sky, and the mountain scenery is mixed. ——Ouyang Xiu

2. If a person is not self-reliant, he will only be shameless. ——Kang Youwei

3. There are no rules without exceptions. ——? Clausewitz

4. The existence and nonexistence of the world cannot be caused or destroyed by thinking. ——Wang Fuzhi

5. There are no rights without obligations, and there are no obligations without rights.

——Marx