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Foreword 1 〓 Maintain the highest state of life and live to the end of life.
Zuo Zhuan divides "longevity" into three levels: upper, middle and lower, saying that "longevity is 120 years old, longevity is 100 years old and longevity is 80 years old". That is to say, 120 is called longevity, 100 is called longevity, and 80 is called longevity. In other words, only those who live to be over 80 years old are qualified to use the word "longevity", and those under 80 years old are not qualified to use the word "longevity".
According to the above theory, most people may not use the word "longevity" now, because they don't pay attention to maintaining their health when they are young, and they often get sick when they are old, so they can only rely on medicine and injections to maintain their lives. Someone has done such statistics. More than 80% people in China spent all their life savings during the period of 10 ~ 20 years before their death, just to treat diseases.
Instead of relying on medicine after illness, it is better to take good care of yourself when you are young, so you don't have to spend money to seek medical treatment when you are old. Huangdi Neijing said: "The sage is treated before he gets sick, and the disease has been treated without disorder ... The husband's illness has become medicine, and disorder has become a cure. Isn't it too late to fight for a cone after crossing the well? " In other words, going to the hospital after getting sick is like digging a well when you are thirsty. The war has already begun. ...
It should be the whole book.
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