1972年12月20日,福建省莆田县农村小学教师李庆霖给毛泽东主席写了一封信,陈述了上山下乡知青生活上的困难境遇和上山下乡运动中的一些阴暗面,得到了毛泽东的回信,在一定程度上改变了千百万知青的命运和生活轨迹。后这名“小人物”在时代大潮中,浮沉荣辱,转瞬倏忽。 On December 20, 1972, Li Qinglin, a rural primary school teacher in Putian County, Fujian Province, wrote a letter to Chairman Mao Zedong stating the difficult situation in the educated youth coming and going to the countryside and the dark side in the movement to and from the country down the hill and received a reply from Mao Zedong , To a certain extent, changed the fate and life track of millions of educated youth. After the name of “little people” in the tide of the times, the ups and downs shame, flash suddenly flash.