"The Basic Theory of Ancient Greek Medicine" is a book through which the basic principles of ancient Greek medical thought are presented and analyzed. The thought of Hippocrates is the one that dominates all others due to the clarity and lucidity with which our ancestor managed to approach human nature in terms of health and disease. Also, the thought of Plato, as well as the later physicians after Hippocrates such as Galen, played a very important role in the formation of the book.