21、Health and cheerfulness mutually beget each other.
      健康与快乐，相辅相成。

　　22、The windows open more will keep the doctor from the door.
　　常开窗户，医生不近门。

　　23、Bed is a medicine.
　　睡好觉如服良药。

　　24、Health does not consist with intemperance.
　　健康和放纵，彼此不相容。

　　25、Health is not valued till sickness comes.
　　有病方知无病乐。

　　26、Diet cures more than the doctor.
　　药补不如食补。

　　27、Cheerfulneis the promoter of health.
　　心情愉快是健康的增进剂。

　　28、An ounce of prevention is worth a pound of cure.
　　预防胜于治疗。

　　29、Diseases of the sou I are more dangerous than those of the body.
　　身体有恙好治，心病难医。

　　30、You must not pledge your own health.
　　切不可把健康当作抵押品。