The first sentence is, "people are not poor in science and cannot study medicine;" Doctors are not poor and cannot use drugs. " This sentence comes from Doctor Liu Jian written by Chen Shiduo in Qing Dynasty. It tells us a very profound and serious truth in extremely simple words: people who study medicine must have a rigorous scientific attitude and the spirit of exploration and research. Without the tenacity of "getting to the bottom of the matter", they can't be good doctors or even doctors. The second sentence is, "husband's medicine is for use, and his life depends on it." "These nine words are like a sword hanging in the sky, always warning the morality and responsibility of every medical staff. As a doctor, any treatment and medication are related to the life and health of patients. Therefore, any diagnosis and treatment action must be based on the safety and health of patients. In the process of treatment, we must respect science and treat diseases in strict accordance with medical laws to do our best! The last sentence is "learning is not clinical, not medical; "You can't be a doctor if you don't study in a clinic." This is about the relationship between books and applications, theory and practice. Medicine is not only a science, but also an experimental science that has experienced countless failures from generation to generation, and it is a science that is constantly developing. Therefore, medical students must update their knowledge through continuous learning, "never too old to learn", and only by increasing their skills in "reading" and "clinical practice" and keeping up with the pace of medical development can they "calmly cope with unpredictable diseases" and truly become the patron saint of health trusted by patients!