Cultivating life-prolonging exercises, not being overly aggressive or fierce, leads to longevity. Many examples can be found of people living to be seventy or eighty years old. The "Wonderful Response Real Person" recorded in books practiced body cultivation and lived over a hundred years.,Wei Tu got up and fed the horses, then picked up a broom to sweep the courtyard of Li's house.,While both serfs and grooms serve their masters, the former face a much harder life. They are burdened with heavy labor and receive no wages, being exploited to death by their owners.。