“The ancient people who knew the proper way to live had followed the pattern of Yin and Yang which is the regular pattern of heaven and earth, remained in harmony with the great principles of human life, eaten and drunken with moderation, lived their daily lives in a regular pattern with neither excess nor abuse.
“For this reason, their spirits and bodies had remained in perfect harmony with each other, and consequently, they could live out their natural life span and die at the age of over one hundred and twenty years.”
-The Yellow Emperor’s Classic on Internal Medicine