The author points out that though Shiing-Shen Chern chose the Academia Sinica to work after his return from America, he made some contributions for the Tsing Hua University.

陈省身1946年由美国回国后虽选择到中央研究院工作，但仍为清华大学做出一定的贡献。

S. Chern and he is over ninety years old. Many universities try to solve the problem by offering many visiting Professors who may commit their time of one to two months to the Chinese institutes.

现在他已经90多岁了。为了解决领袖人物的问题，许多大学设立了许多访问教授的席位，邀请他们到中国的研究机构访问期一两个月。