Pei Yu (267-300), courtesy name Yimin, was a famous philosopher and politician in the Western Jin Dynasty. He was born into the famous Pei family in Hedong. His father Pei Xiu was the founding father of the Western Jin Dynasty and an outstanding geographer. Pei Yu was intelligent and erudite since childhood, proficient in medical skills, and was known for his magnanimity and elegance. He was known as the "forest of conversation" by his contemporaries. He went through the ranks of officials and princes, concubines, regular servants of Sanqi, and princes of the state, and finally became the minister Zuopushe and became an important minister of the imperial court. Faced with the trend of metaphysical talk that was prevalent in the early Western Jin Dynasty, he uniquely wrote "On Chongyou", criticizing the idea of "valuing nothing", advocating that "you" is the origin of the world, emphasizing the application of the world, and maintaining the etiquette system. His philosophical thoughts pioneered the "Chongyou School" in metaphysics in the Wei and Jin Dynasties, and had a profound influence on later thinkers such as Guo Xiang. Later, he was killed in a political struggle because he refused to attach himself to King Sima Lun of Zhao. He was only thirty-four years old. Although his life was short, his ideological achievements were outstanding and he could be called an indispensable and important figure in the history of Wei and Jin philosophy.
