Gu Jiegang
Most of their criticism concerns the authenticity of pre-Qin texts and deals with questions put forward by the past dynastic writers, as well as other subjects. Hu Shih initiated the critical movement, with his pupil Gu Jiegang and his friend Qian Xuantong continuing this school of thought. Their writings also had influence on many western sinologists, including Bernhard Karlgren and Samuel Griffith.