Professor Su is internationally praised as the "Prince of Mathematics in China". He is the president of Fudan University. He said, "If Fudan is allowed to enroll students independently, I suggest that we take the Chinese in the first class first and then mark the papers. If the language is not good, you don't have to attend the later classes. You can't speak Chinese, and no one else can learn it. " He himself recruits graduate students in science and engineering, and resolutely refuses to accept those with poor Chinese.