Zheng Banqiao (writer, painter and calligrapher in Qing Dynasty): In his later years, he wrote a couplet in class: "Vegetable, radish, brown rice, crock, water, chrysanthemum tea". Don't think this is the masturbation of a generation of celebrities when they are down and out. This is just as Professor Qi Guoli, a health expert, said: Simple tea and simple meals are good for health and longevity. Of course, the significance of this connection is his "normal heart" that is willing to be indifferent.

Deng Shengxie, a calligrapher in the Qing Dynasty, was patient and humiliated, devoted to treating diseases, worried about drinking less, dreaming less, planting flowers but vulgar, burning incense and polluting; Sit quietly to make up for fatigue, stay alone to make up for deficiency, save money to make up for poverty, make up for goodness, calm down anger and replenish qi, and make up for illness by silence.

Ji Xiaolan, a writer in the Qing Dynasty, entertained himself by hanging a couplet in the living room, saying, "Everything is contented, and people are always happy." . Su, a famous monk in the Qing Dynasty, inscribed a health couplet entitled "Gan Kun makes me quiet, fame and fortune makes others busy" and hung it in Putuo Temple. There is also Zhang Zhidong's: "Nothing makes you feel at ease, and lack of it makes you really sick." These couplets all point out that "contentment", "no desire" and "openness" can preserve health, and contentment makes people happy.