Zhu Xi
Zhu Xi, whose family originated in Wuyuan County, Huizhou (in modern Jiangxi province), was born in Fujian, where his father worked as the subprefectural sheriff. After his father was forced from office due to his opposition to the government appeasement policy towards the Jurchen in 1140, Zhu Xi received instruction from his father at home.Many anecdotes attest that he was a highly precocious child. It was recorded that at age five he ventured to ask what lay beyond Heaven, and by eight he understood the significance of the Classic of Filiality (Xiaojing). As a youth, he was inspired by Mencius’ proposition that all people could become a sage. Upon his father's death in 1143, he studied with his father's friends Hu Xian, Liu Zihui, and Liu Mianzhi. In 1148, at the age of 19, Zhu Xi passed the Imperial Examination and became a presented scholar. Zhu Xi's first official dispatch position was as Subprefectural Registrar of Tong'an (同安縣主簿), which he served from 1153 - 1156. From 1153 he began to study under Li Tong, who followed the Neo-Confucian tradition of Cheng Hao and Cheng Yi, and formally became his student in 1160.
Xu Shu
Xu Shu ( 207–220s), courtesy name Yuanzhi, originally named Shan Fu, was an official of the state of Cao Wei during the Three Kingdoms period of China. He was born in the late Eastern Han dynasty and used to be a vigilante swordsman in his early life. However, after running into trouble with the authorities, he renounced his old ways and took up scholarly pursuits. He lived a reclusive life from the 190s to mid-200s in Jing Province (covering present-day Hubei and Hunan provinces), where he met and befriended Zhuge Liang. In late 207, he became an adviser to the warlord Liu Bei and served under Liu for about a year. He also recommended Zhuge Liang to Liu Bei during this period of time. In late 208, Liu Bei was defeated at the Battle of Changban by his rival Cao Cao. Xu Shu's mother was captured by Cao Cao's forces during the battle. Feeling lost and without a sense of direction, Xu Shu eventually left Liu Bei and joined Cao Cao. He continued serving in the state of Cao Wei – founded by Cao Cao's son and successor, Cao Pi, who ended the Eastern Han dynasty – and died of illness in office.