2. [Heart] is a metaphor for painstaking research.
3, [one by one], a metaphor for painstaking research.
4, [sharpening], honing. Describe studying hard.
5, [sneaking around], groping: looking for and exploring. Looking in the dark. After metaphor without guidance, study alone.
6. [Hook depth], hook: hook; Suo: Exploration. Take dark colors and explore secrets. Refers to delving into profound knowledge and exploring hidden things.
7. [Concentrate on thinking] means to concentrate on research.
8. 【 concentrate on thinking 】 refers to concentrate on research. The same as "potential research and thinking".
9. [painstaking] refers to concentrating on research to the point where others can't reach it. It also means taking pains to find a solution to the problem.
10, [a teacher stays in Confucianism], staying in Confucianism: originally refers to a person who has studied Confucian classics for a long time, and generally refers to a person who has been engaged in a certain knowledge research for a long time and has made certain achievements. Refers to the most respected teachers and knowledgeable scholars of their generation. Also known as "old hands stay in Confucianism".
1 1, [tasty], just do it. I tried it a little and stopped. It means not to delve into it.
12, [drilling old paper pile], old paper: refers to ancient books. Refers to blindly studying ancient books, divorced from reality. Also called "drilling old paper" and "delving into old paper".
13, [delve into the details], delve into difficult and subtle knowledge.