During the Spring and Autumn Period of Confucius' life, the political system based on blood clan in the Western Zhou Dynasty had collapsed, and the "Zhu Xia" national community based on cultural identity was taking shape. This is the era when China people's cultural awareness first occurred. Classicism became fashionable, and some people began to think about the problems of heaven, life and world order. Cultural education, which was originally monopolized by nobles, is gradually flowing into the people. Confucius is the representative and master of the spirit of this era. He initiated a hundred schools of thought during the Warring States Period.