1998年8月22日,著名科学家钱学森在病榻中亲笔给一个叫孙万鹏的人写信,信中称:灰学是一门新学科,是一门大有前途的理论。李鹏委员长在全国政协的一次春节茶话会上肯定说:“灰学系统理论很有意义。”朱镕基总理在视察三峡工程时曾问:“灰学理论在三峡工程中的应 On August 22, 1998, Qian Xuesen, a famous scientist, wrote a letter to a man named Sun Wanpeng in his sickbed. He said: As a new discipline, aspiration is a promising theory. At a Spring Tea Party session of the CPPCC National Committee, Chairman Li Peng affirmed that “the theory of ash system is of great significance.” During his visit to the Three Gorges Project, Premier Zhu Rongji once asked: "The theory of ash theory should be used in the Three Gorges Project