Original: Zh X or Chu Hsi ( , October 18 , 1130 , Youxi , Fujian province , China -- 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 .
Simplified: Zhu Xi or Chu Hsi ( , October 18 , 1130 -- April 23 , 1200 ) was a Confucian scholar during the Song Dynasty .