Only by going deep into the specific work can we understand the meaning behind this. This doctor from Peking University specially sent takeout for half a year for research. I think it's good for his research. If you don't practice, then it can't come to this conclusion, or even if you can come to a conclusion, the truth of this conclusion is worth studying. Only in practice can we get the truth. This sentence, from novel to big, is enough to prove the importance of practice. It's just that many people don't know the importance of practice. They just look for some different opinions in theory, but they don't actually put them into practice.
So this truth can only appear in practice. We have always attached great importance to the combination of theory and practice, paying attention to both theory and practice, and should combine the two accordingly, so as to maximize the effect. Any theory is determined by the conditions at that time when it came into being. We should take a dialectical attitude towards this theory, not blindly follow it. We should keep our ideas, apply these theories to real life, and then verify the correctness of these theories. This is the most important place, and this is also a very important point of practical knowledge.