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**Fundamental Reshaping**: Zhu Xi's profound intellectual legacy lies in his comprehensive reshaping of Neo-Confucianism, known as the "Daoxue" school of thought. He systematically organized and refined its philosophical tenets, emphasizing the moral self-cultivation and the investigation of the principles of nature. Zhu Xi's integration of Confucian ethics, Buddhist contemplative practices, and Daoist metaphysics established a profound theoretical framework that profoundly impacted subsequent generations of Chinese scholars and philosophers.