In fact, the story of human learning and progress is the story of overcoming fear. Each of us has been learning to ride a bicycle, learn a driver's license, learn to swim, learn to dive, not to mention extreme sports. I am not afraid of your jokes. What is the thing that I jumped in the high school physical education class, some fell in the bar, I was shaking? This is especially true for human history, the first people who eat crabs, the global adventures of the ocean age, spacewalks, and the landing of people on the moon. Every step taken by people may need to overcome the unknown fears they face. The so-called comfort zone is the entrance to the large comfort zone. But what is the comfort zone? The so-called comfort zone usually depends on the path, the scene we are used to, the environment we are used to, the relationship we used to pay and reward. For example, some scientists previously mentioned that they cannot get out of the comfort zone. They are used to working hard and wil