Zhu Ziqing is a professor in the Chinese Department of Tsinghua University. In early 1948, the People's Liberation War entered its final stage. In June, students in Peking launched a movement against the United States' support of Japanese militarism. At that time, Zhu Ziqing was seriously ill and had no money for medical treatment, but he did not hesitate to write: "To show the dignity and integrity of the Chinese people, we categorically reject all charity materials from the United States that have the nature of buying souls, whether purchased or given of". signed his name on the manifesto. At the beginning of August, Zhu Ziqing's condition worsened, hospitalization failed, and he died on the 12th. He was only 50 years old at that time. Before he died, Zhu Ziqing earnestly told his family in a weak voice: "There is something to remember. I signed the document rejecting American flour. Our family will not buy American flour provided by the Kuomintang in the future!"

Wu Han wrote "About Zhu Ziqing's Refusal to Receive American "Relief Food"" written in 1960: "At this time, his stomach problems were already very serious and he could only eat very little, and he would vomit if he ate more. His face was thin , spoke in a low voice. He had seven children, and his life was more difficult than anyone else's. But as soon as he read the manuscript, he signed it without hesitation. "Mrs. Zhu Ziqing also wrote: "Our family has a large population. Difficulty. In order to survive, Pei Xian (Zhu Ziqing, nicknamed Pei Xian) had to write more articles despite being seriously ill, often writing until late at night, or even until dawn. At that time, the family had two meals a day, and sometimes gave him food to take care of him. He cooks small grains, but he never eats them alone, but always shares them with the children." When Wu Han asked Zhu for his signature, "His condition was very serious and he was vomiting violently - the doctor said he should have surgery as soon as possible. "Zhu Ziqing wrote in his diary that day: "This matter will cost six million French currency every month, which will greatly affect the family, but I still decided to sign because I and others are anti-American and supportive of Japan, so they should start directly from themselves. It’s just a spiritual protest, but you should never evade personal responsibility.” It can be seen that Wu Han’s statement of “signing immediately without hesitation” was obviously exaggerated. Zhu Ziqing at least gritted his teeth and decided to lead by example. Decide to sacrifice the necessities of life for your family.