A physician must have a caring heart. This essential spirit has existed since ancient times. In the chapter “On the Skill and Sincerity of a Master Physician” of his work Essential Formulas for Emergencies, the famous Tang Dynasty physician Sun Simiao (581-682) discussed how a physician should have a compassionate heart, that is, a caring heart. A physician is expected to have great love, a sense of empathy and a desire to relieve suffering; he must disregard personal interests and focus entirely on treating the sick. In so doing, the physician becomes a “master physician to all the people,” a great physician held in high esteem by all the people. This expression can be considered a classic expression of the humanist spirit of Chinese medicine.