1. Historical evolution of ancient Chinese characters in China: This theme can explore the development history of ancient Chinese characters in China, from Oracle Bone Inscriptions to Chinese characters, to Chinese characters today, and the changes and evolution of Chinese characters.
2. The structure of ancient Chinese characters in China: This topic can be discussed from the aspects of the shape, meaning, pronunciation and meaning structure of ancient Chinese characters in China.
3. Cultural significance of ancient Chinese characters in China: This theme can explore the cultural significance of ancient Chinese characters in China from the aspects of history, etiquette, literature and culture.
4. The application of ancient Chinese characters in China: This topic can be discussed from the application of ancient Chinese characters in China in calligraphy, painting, music, architecture and other fields.