Chengguan (738–839), the fourth patriarch of the Huayan school of Chinese Buddhism, declared the primacy of Buddhism over Confucianism and Daoism and criticised these philosophies from a Buddhist stance. In his subcommentary to the Avata?saka Sutra, he defines ten differences between Buddhism and indigenous philosophies, which are discussed in this paper. However, he also often quoted from Chinese Classics to clarify the meaning of a Buddhist tenet. On these occasions he sometimes adds that he only borrows the words but (...) not their meaning. We investigate how he places these words into a new, Buddhist context. (shrink)