The saying "You can understand by looking at it, you can learn it by learning it, and you can make mistakes by doing it" describes a person who has a good eye but a weak hand and is not calm enough. This means that when a person learns something, he just watches others do it and then says "I know it!". He thinks he knows it and then stops studying seriously. In fact, he only has a partial understanding of it, so he will make mistakes as soon as he practices it.

In the process of learning, I am often half-hearted and not focused enough. Some knowledge seemed to be remembered at the time, but in fact, either the memory was not firm, a new knowledge system structure was not established, a meaningful knowledge structure was not formed, or it was simply not summarized well and summarized into the original knowledge. In the knowledge structure, the result is that it cannot be memorized for a long time. The ultimate reason for this result is the "failure to memorize seriously" which leads to the situation of "high sight but low hand".

In the process of learning, there is no method. Therefore, the information that leads to memory does not cause special sensory stimulation, so the impression is not deep and the memory is not strong. This is a situation of "high sight but low hand" caused by "not being able to remember".

The memorized knowledge cannot be reviewed in time, so the memorized knowledge cannot be strengthened, and the knowledge will be forgotten gradually and cannot be recalled for a while. This is also due to the failure to review in time and the lack of diligence, resulting in the phenomenon of "high vision but low hand".