The Confucian thoughts about the relationship between virtue and happiness have been highlighted in Chinese academia since Mou Zongsan published his book,Yuanshan Lun .However,in the past thirty or forty years,scholars have concentrated their studies on the idea of″the highest good″m ainly on the tradition of Mencius and on Mou Zongsan's thoughts of″the complete good″w hich was often compared with Immanuel Kant's thoughts of″summum bonum .″Most scholars ignored the thoughts of the Confucian tradition of Xun Zi regarding the relationship between virtue and happiness .Confucian ideas about the faith in the decree of the heaven and in the consistency between virtue and happiness,were based on the thought of″the harmony between the heaven and the people,″w hich was the main essence of Chinese ancient philosophy .Although ″the harmony between the heaven and the people″was the mainstream of Confucian philosophy,it was not the only philosophical way .There was another Confucian tradition,Xun Zi's natural rationalism,which was based on the thought of″the distinction between the heaven and the people .″X un Zi's natural rationalism went strongly against the ideas of″the harmony between the heaven and the people″and the theology of the decree of the heaven,and it destroyed the philosophical basis of the faith in the consistency between virtue and happiness under the decree of the heaven .It was Xun Zi who initiated the natural rationalist tradition of″the distinction between the heaven and the people″in Confucianism .Xun Zi's idea of heaven was different from the ideas of other Confucianists in Pre-Qin Dynasty .The theological meanings had almost been abandoned from Xun Zi's idea of the heaven,which took a metaphysical approach and regarded the heaven as the objective nature .As for the relationship between the heaven and the people,Xun Zi thought that Mencius school mixed up the″D ao″of the heaven and the″D ao″of the people .So he claimed that heaven is independent form the people,and came up with a theory of″controlling the decree of the heaven .″T his theory reflected the typical spirit of pragmatic rationalism in Confucianism .Xun Zi's philosophical tradition has less influence than Mencius tradition,but it's not wise to ignore its influence on the following Confucianists .The tradition of Confucian natural rationalism has continuously existed as an opposition of the faith in the decree of the heaven,on which the consistency between virtue and happiness is based .Following the philosophy of XunZi,Wang Chong claimed the way the heaven works is through nature and inactivated,and disagreed with the idea that there was consistency between virtue and happiness governing by the faith in the decree of the heaven .Also he proposed a theory to separate human nature from fate .In the medieval era,Liu Zongyuan and Liu Yuxi inherited the thoughts of Wang Chong and built the theory that″heaven and the people are separated .″W ith the rising of the NewConfucianismin the Song and Ming Dynasties,the Confucian natural rationalism had been marginalized .However,it still influenced many Confucianists who were concerned with social reality .In brief,the thoughts of the Confucian natural rationalism represent important progress in exploring the relationship between the heaven and the people subjectively and rationally .But Confucian natural rationalism ignored the social significance of the faith in the consistency between virtue and happiness under the decree of the heaven,and lost the fundamental spirit of Confucianism,″the humanistic concern .″