During the Spring and Autumn Period, Laozi gathered the great wisdom of ancient sages and sages. Summarized the essence of ancient Taoist thought and formed a complete and systematic Taoist theory, which marked the formal formation of Taoist thought. Taoism is the school that has the most profound influence on China's philosophy, literature, science and technology, art, music, health care and religion. Needham said: "Many of the most attractive factors in China's personality come from Taoist thought. Without Taoist thought, China is like a tree, with deep roots and luxuriant leaves, rotting away. " "Taoist thought is the foundation of China's science and technology" and "Taoist philosophy is the top priority in the history of China's science", which has exerted great influence on the religion, thought and culture of the whole East and Southeast Asia.