Let's look at the example of Mr. Dongpo's great achievements in reading Han Shu by the method of "being attacked on all sides":
"I have tasted Hanshu and counted it. Such as governance, people's feelings, geography, official system, art of war, wealth and goods. Don't wait to count, but everything is fine. "
Mr Dongpo said:
I once read Hanshu, and I probably read it many times before I fully understood it. Focus on one reading purpose at a time, understand one, and then specialize in the second. I haven't seen it many times like this. I know everything in the book by heart.
This method can be called "breaking the whole into parts and breaking them one by one".
"Surrounded by enemies" and "Feynman Learning Method";
In fact, the Feynman learning method, which is widely respected now, has similar operation steps.
First of all, it is also aimed at the learning goal, splitting or disassembling a learning task, and then solving each subtask from shallow to deep.
Then, teach yourself, that is, repeat these contents in your own words in an easy-to-understand way. If there are still opaque parts in the retelling, go back and subdivide them until you fully understand them.