The ancient Chinese used classical Chinese to speak in their daily lives. The classical Chinese was the written language of ancient China. It was concise, rigorous, and standardized. The vocabulary and grammar used were very different from modern Chinese. In ancient times, classical Chinese was the official language used to record official documents, books, poems, songs, and so on. It was also used for daily communication. Although the development of modern Chinese has replaced the status of classical Chinese, classical Chinese still plays an important role in Chinese culture and is widely used in literature, history, philosophy and other fields.