Gorky once said that interest is the best teacher. We all like doing what we like, so sometimes, we don't have to force ourselves to do what we don't like, and the effect is often not very good. Maybe you will find that when you concentrate on doing something, you will forget the time and feel that time passes very quickly, but when you force yourself to do it, you will find that time seems to have stopped. In fact, the speed of time will not change, it is also 60 seconds a minute, but whether you are interested or not will produce two different results.