About Zhu

2. A famous thinker and educator in Song Dynasty annotated many classic works and proposed that reading should be "step by step". Zhu Zi 19 was a scholar, but his performance as an official was mediocre. It is said that in order to bring down his political opponents, he once tortured Yan Rui, an official prostitute and poetess, to make her accuse him of having an affair with the authorities. Finally, the emperor couldn't stand it, lost his official position and went home to teach.

3. Notes on Four Books