The principle of he（harmony）is central to Chinese holistic philosophy.Harmony signifies accord，balance，and moderation.It is foundation of the health and vitality of the”ten thousand things”of the material world，as well as the ultimate goal of Chinese cuisine.
Harmony and moderation are integral aspects of the Chinese approach to food.A harmonious diet isconsidered to be directly connected with good health.According to Confucius（551-479 BC），a person with an evolved character does not overeat.The philosopher Mozi（c.476-390 BC）taught that culinary seasonings should be used in moderation.According to Five Elements theory，the Five Flavors correspond with the five =ang organs of the human body.Excessive consumption of any of the flavors will therefore damage the corresponding organ.Too much salt damages the heart；too much sweet food damages kidneys；too much spicy food damages the liver；too much sour food damages the spleen.The use of culinary seasonings should be adjusted according to the seasons.More sour food should be eaten during the spring，more bitter food during the summer，more spicy food during the fall，and more salty food during the winter.
It is easy to overindulge in delicious food and drink，with resultant damage to the health.For instance，alcoholic beverages have great appeal，but heavy drinkers risk becoming alcoholics.According to ancient Chinese records，the emperor Da Yu（Five Emperors Period，c.3000-2070 BC）once was presented with a gift of rare wine from abroad.After sampling the delicious drink，he warned that excessive drinking was certain to lead to the downfall of some future ruler.
