Aurthur: Dr. Tsun-Nin Lee received his B.A. from Columbia college and M.D. from New York University school of Medicine. He is the proponent of the thalamic neuron theory, which was published in a series of papers between 1976 and 2002 in Medical Hypothesis, to explain the phenomena and principles of traditional Chinese medicine from the modern scientific point of view, as well as to shed light on many enigmas encountered in the practice of modern medicine. The contents of this book (volume 1) feature the transcripts of an audio lecture series presented at the beginning of the Comprehensive Training Course on Acupuncture for Physicians (www.acupuncturecourse.org) to familiarize the participants with the concepts of traditional Chinese medicine (TCM). A reasonable explanation is now at hand to reconcile the apparent differences between modern medicine and TCM. This book represents the initial effort in the daunting task of integrating Eastern and Western systems of healing.