The article discusses how ancient writings developed over time, focusing on three main systems: expressing emotions, narrating events, and presenting arguments. Wang Baoxin's research shows that these systems influenced each other and evolved through different literary periods. Examples like the Book of Changes and poems by Qu Yuan are used to illustrate these systems. The study also highlights how different literary schools emerged in history, each with its own unique style. Overall, the research demonstrates how ancient writings were shaped by the interplay of emotion, events, and reasoning.