That is to say, if you study, you might as well go around and see more, which is much better than what you read in books. Traveling thousands of miles across rivers and mountains is not as good as seeing more people and understanding their hearts. This is a sentence made up based on the current social situation. And the third sentence, it is better to have a knowledgeable teacher to guide you than to read countless people. It is better for the teacher to give you direction than to realize what you want to understand yourself. The emphasis is on the last sentence.