Qian taught physics at Zhejiang University from 1959 to 1980.[1] During the Cultural Revolution, he was branded an "ideological counter-revolutionary."[2] In 1980, the government of the People's Republic of China sent Qian to the United States to continue his studies. In 1983, he graduated from Northwestern University with a Master of Arts in history. Qian was funded by the W. Clement Stone Foundation to translate several works from Chinese to English.[1] In 1985, he published his most known work, The Great Inertia: Scientific Stagnation in Traditional China.[3] The work was "cast in the form of a challenge" to Joseph Needham's Science and Civilisation in China.[2] Qian believed that political conditions, particularly the imperial examination system, stymied the development of modern science in dynastic China.[4] Qian saw the neglect of formal logic and rigorous proof as a central cause in the failure to develop modern science.[5]: 108, 217