(I believe that every friend who reads this article has worked hard to study the course of 21-day mind map + knowledge cards to improve themselves, but learning is a very anti-human thing, and most people think about it at night. Think a thousand ways, wake up in the morning and go the same way. I also believe that many people have bought online projects or courses related to their careers online. Because everyone has curiosity, likes to learn, and hopes to learn more knowledge.)