Letter to Fu Zongsun [1] (October 23, 1951)  Mr. Fu: A message of condolence is required for Mr. Tang’s memorial service [2]. As instructed, I have written the title for the Mathematics Journal [3]; I wonder whether it is suitable?  Mao Zedong October 23, 1951  Printed from the manuscript.  Notes  [1] Fu Zongsun was at that time a professor in the Department of Mathematics at Beijing Normal University and the editor-in-chief of the Chinese Journal of Mathematics.  [2] Refers to Tang Menglin, who was a professor in the Department of Mathematics at Beijing Normal University during his lifetime. After his passing, Mao Zedong sent his secretary, Tian Jiaying, to Beijing Normal University to express his condolences.  [3] Namely, the Chinese Journal of Mathematics.