Ancient Chinese people usually did not speak in classical Chinese, but in ancient Chinese, which was also known as classical Chinese. The classical Chinese was a written language used in ancient China to record official documents, classics, and cultural knowledge. Its grammar, vocabulary, and expression were very different from modern Chinese. Although classical Chinese played an important role in ancient Chinese history, it was rarely used in modern society and was replaced by modern Chinese. Although modern Chinese people may not use classical Chinese in their daily lives, many writers, scholars, and cultural inheritors are still committed to protecting and promoting the cultural value of classical Chinese and passing it on through modern languages and expressions.