今天這個題目翻譯為中文叫費曼技巧。一般上認為要踐行費曼技巧需要經過四個步驟。具體如下:1.明確目標，就是在你開始學習或理解某些概念知識點時，問自己這回我的最終目標是什么，達成什么樣的成果能說明我已經完成既定目標。2.以教促學，就是把你已經認為掌握的知識再向其他人說一遍，必須是用自己的語言組織起來，而且要確認對方能理解你說的東西，這是一種正向反饋。刻意練習強調的也是這種隨時接收有效反饋促進練習效果的做法。 3.化整為零，就是分塊分組思想，把一個大問題切割成多個小問題，把自己不能解答的問題標出，并逐個深入理解，各個擊破，最后完成有機整合，解決大問題。同樣在刻意練習中，也強調要有計劃分步練習，并把每個練習都重復多遍，直到長到大腦上，分步練習最終是為那個大技能服務的。4.總結提煉，這個過程也是更高層級抽象的過程，同時也是對所學知識更深入理解的過程，能提煉出一兩個核心觀點，說明你已經透過現象看到了事物的本質，大道至簡，不能對事物進行簡化的說明就意味著你還不能完全靈活掌控所學知識。
下面摘抄一段網上流行版本的費曼技巧英文說明。雖然跟我上面的表述不大相同，但中心思想是一樣的，都是要求你能用自己的語言把要說明的概念簡單易懂地表達出來，類比是一個很有效的方式。下文黑體字是四個關鍵步驟。
The Feynman Technique — an incredibly simple and effective way to learn new things and identify holes in your knowledge.
Step 1. Choose the concept you want to understand.
Take a blank piece of paper and write that concept at the top of the page.
Step 2. Pretend you’re teaching the idea to someone else.
Write out an explanation of the topic, as if you were trying to teach it to a new student. When you explain the idea this way you get a better idea of what you understand and where you might have some gaps.
Step 3. If you get stuck, go back to the book.
Whenever you get stuck, go back to the source material and re-learn that part of the material until you get it enough that you can explain it on paper.
Step 4. Simplify your language.
The goal is to use your words, not the words of the source material. If your explanation is wordy or confusing, that’s an indication that you might not understand the idea as well as you thought – try to simplify the language or create an analogy to better understand it.
很顯然，我還沒掌握費曼技巧，這段中文說明讓你受累了。
