Hua is a famous mathematician in China, who has made great contributions to the cause of mathematics in China, but he is not a world-class mathematician. In my opinion, his position is one level higher than that of ordinary national academicians, but one level higher than that of Chen Shengshen and Qiu Chengtong, two levels lower than that of Riemann, Godel and Poincare, and three levels lower than that of Gauss, Euler and Newton.