Zhu Xi or Chu Hsi ( æ ç , October 18 , 1130 â `` April 23 , 1200 ) was a Confucian scholar during the Song Dynasty . He was from Fujian province in China . ZhÅ `` â XÄ `` â or Chu Hsi ( æ ç , October 18 , 1130 , Youxi , Fujian province , China â `` April 23 , 1200 , China ) was a Song Dynasty ( 960-1279 ) Confucian scholar who became the leading figure of the School of Principle and the most influential rationalist Neo-Confucian in China .