如何学好一门学科，如何彻底掌握一项工作技能，费曼学习法给出了四个步骤：

1.Identify the subject.

Write down everything you know about the topic.

2.Teach it to a child.

If you can teach a concept to a child, you’re way ahead of the game.

3.Identify your knowledge gaps.

This is the point where the real learning happens.

4.Organize，simplify，tell a story.

Start to tell your story.