《魏书·列传·卷三十一》
房景先生前撰《五经疑问》一百多篇，其言精当，今流行于世，原文很多，现略举其中有关世教的文字：
先作《五经疑问》百余篇，其言该典，今行于时，文多，略举其切于世教者：
During his lifetime, Fang Jingxian compiled more than 100 articles on Questions and Objections on the Five Classics, the words of which were pertinent. They are still circulated today; the original text is long, and here are some excerpts related to the doctrines of the world: