Abstract
Song and Ming dynasty neo-Confucianism was an important aspect of the superstructure of China's feudal society, was an important tool by which the landlord class controlled the people intellectually. The development of Song dynasty neo-Confucianism reached its peak with Zhu Xi [1130-1200] and Lu Jiu-yuan [Lu Xiangshan, 1139-1193], with whom both objective idealism and subjective idealism became well established as systems of thought. The objective idealism of Zhu Xi later became the orthodox philosophical system of the feudal ruling class, and throughout the Yuan, Mind, and Qing dynasties Zhu Xi was regarded as the official spokesman for the ideology of the landlord class.