历经百年沧桑的清华大学,为近代中国培育出一大批学术大师、科研巨擘,宁永成教授便是其中之一,他拼搏奋进的动人事迹,使人深受鼓舞。退休前,宁永成教授在他热爱的科教岗位上取得了不俗的成绩。退休后,闲不住的他又立下了新的志愿:科研工作不能止于旧誉,也不能只做锦上添花的事情,要力争有所前进,有所超越,有所突破! After a hundred years of vicissitudes of the Tsinghua University, modern China has cultivated a large number of academic masters, scientific research giants, Professor Ning Yongcheng is one of them, and his inspiring deeds make people deeply encouraged. Before his retirement, Professor Ning Yongcheng achieved good results in his devotion to science and education. After retiring, he could not help but set a new volunteer: research work can not stop at the old reputation, can not only do things icing on the cake, to strive for progress, beyond, a breakthrough!