Each time when the book is finished, both of my eyes are full of tears. Each word in these series of books represents hard work and time and dedication and care for human health. These series are not just written down but are worked down.Science life is not always smooth and sometimes is extremely difficult. Science is endless. Only those who are not afraid of failure or risk can reach the summit of the mountain.In medical history the Greek physician Hippocrates (460-370 BC), who is considered the Father of Medicine, was credited to the origin of the name cancer. He used the terms carcinos and carcinoma to recount non-ulcer-forming and ulcer-forming tumors. In Greek, these words refer to a crab because the finger-like spreading projections from cancer were similar to the shape of a crab. In his books, there are some records that also were written down: "Everyone has a physician inside him or her; we just have to help it in its work. The natural healing force within each of us is the greatest force in getting well. Let our food as our medicine, and let medicine be our food."