What is the internal driving force that drives doctors to constantly update their knowledge?

The fundamental goal of medicine is to serve patients. The goal of knowledge updating is to give patients the best possible treatment plan (at least, it meets the standards and reaches the average level). Especially in big hospitals, it is not easy to queue up. I endured discomfort and started a family. I waited in line all morning and watched for a few minutes. It cost a lot of money, but the scheme used is actually unreliable. I can fool myself and dare not fool patients and their families. This is an inherent conscience constraint or moral constraint. ? Gao Gao said that the task of medicine is to serve all mankind, meet the needs of all aspects of human healthy life, and increase human freedom, happiness and liberation. ? From the external reasons, in the long run, if the sample size is large enough, factors such as peer competition and patient reputation can judge doctors to some extent in the long run. ? Of course, unreasonable institutional arrangements may also damage the motivation of medical staff to pursue progress and self-improvement. This situation is also very common in real situations. Of course, negative emotions such as frustration are also conceivable. Therefore, from the perspective of pursuing perfection, medical work is very difficult to do.