中国人认为，太极是天地万物之根源。太极分为阴阳二气，阴阳二气产生木、火、土、金、水这五行。五行代表或作用于人体器官，即火对心，木对肝，土对脾胃，金对肺，水对。肾。阴阳化合而生万物，太极则代表了阴阳调和。长期以来，世界只知道中国有指南针、火药、造纸和活字印刷四大发明。几乎很少有人知道中国已发现了经络的存在。经络是指人体内血气运行通路的主干与分支网络，针刺穴位 散布其间。北京经络研究中心通过现代科学方法，已经证实了经络的存在。经络的发现无疑 是为《易经》和《黄帝内经》的理论提供了强有力的佐证。

We Chinese believe that taiji is the origin of all lives on Earth. Taiji comprises yin and yang, two types of vital energy. The five elements of wood, fire, earth, metal and water derive from yin and yang. These five elements correspond to, or affect, particular human organs. That is, the element of the fire corresponds to the heart, the wood to the liver, the earth to the spleen and the stomach, the metal to the lung and the water to the kidney. The combination of yin and yang gives birth to all lives on Earth. Taiji represents the harmonious state of balance between yin and yang. For a long time, the rest of the world was only aware of China's four major inventions: the compass, gunpowder, paper-making and movable-type printing. Very few know about China's discovery of jingluo that exists in a human body. Jingluo is a system of internal main and collateral channels, regarded as a network of energy passages, along which acupuncture points are distributed. The existence of jingluo has been proved by using modern scientific methods at the Beijing Jingluo Research Center. The discovery of the existence of jingluo provides a strong support for the theories advanced in The Book of Changes and Huang Di's Classic of Internal Medicine.