Xue Rui's explanation.

Wise explanation, wise knowledge. In the Ming Dynasty, Li Dongyang wrote "Playing for the sake of resignation and avoiding promotion": "However, the material strength is thin and the knowledge is empty, so we can't praise Hongyi and develop the sense of learning."

Word decomposition

Rui's explanation is profound and clear, and very wise. Ruizhe (wise, wise). The language of praising the emperor in ancient times: Ruizhi. Ruilan (Yu Lan). Radical: purpose; Hermeneutics of learning should follow suit, delve into knowledge, acquire knowledge and study: students. Apprentice. Study, study. Xueyou scholars. Learn valves. Education system education. Handan toddler (mocking people who only know imitation, are not good at learning and have no achievements, also called "Handan toddler"). The place to impart knowledge: school ("learning" for short)