Шу цзин
Yan Ruoqu (; November 11, 1636 – July 9, 1704) was an influential Chinese scholar of the early Qing Dynasty. He was born to a scholarly family in Taiyuan, Shanxi. Yan Ruoqu is most famous for proving that the "Old Text" chapters of the Confucian classic "Book of Documents" were forgeries (see ). He also made observations and theories about the motions of the Moon and the planets.