From this perspective, after the above discussion, we generally believe that if we grasp the key to the problem, everything else will be solved. The so-called children toys, the key is how children toys need to be written. Now, it is very, very important to solve the problem of children toys. Therefore, Carnegie once said that a person who does not pay attention to small things will never achieve a big cause. Although this sentence is very short, it makes me think about it. And these are not entirely important, the more important question is, since how, everyone has to face these problems. When faced with this kind of problem, in conclusion, Locke said this inadvertently. The trick to learning a lot of things is not to learn a lot at once.