Guo Shengbai was born in a famous family of Chinese medicine, and he is the fourth generation descendant. Engaged in Chinese medicine clinic for more than 60 years. He read through the classic works of Chinese medicine and attached great importance to syndrome differentiation and treatment of Chinese medicine. His profound foundation, superb medical skills and outstanding clinical effects have won worldwide praise. Lao Guo studied from many experts, diligently sought the ancient method, devoted himself to research, and combined with decades of clinical accumulation, wrote many works. His important works include Treatise on Febrile Diseases, Seeking Truth from Six Classics, Ecological View of Traditional Chinese Medicine, Interpretation of Yin-Yang and Five Elements, Life Science of Traditional Chinese Medicine-Instinct Theory, and Tao and Technique of Traditional Chinese Medicine. "Instinct theory" is the refinement and sublimation of Chinese medicine for more than 2000 years. Tell everyone how Chinese medicine treats diseases, how to treat diseases, and whether Chinese medicine is scientific or not.