What is Chiang Kai-shek's famous saying in the Huangpu Military Academy office?

The office of Chiang Kai-shek, the president of Huangpu Military Academy, is at the west end of the second floor of Zoumalou. A table and a chair have lost their former majesty. On the wall of his office, there are two lists of students in the first phase of Huangpu Military Academy, with many comments and circles on them. On Chen Geng's comment column, it reads: "This life is weak in appearance, but steady in character, hardworking and able to lead troops."