《宋史·列传·卷一百八十六》
所以他的学问是尊崇礼教，以德为贵，乐天安命，以《易》经为学的宗旨，以《中庸》为本体，以《孔子》、《孟子》为效法的对象，黜除怪诞妖妄，辨清鬼神妖怪。
故其学尊礼贵德、乐天安命，以《易》为宗，以《中庸》为体，以《孔》、《孟》为法，黜怪妄，辨鬼神。
His scholarship believed in respecting ritual and morality, emphasizing virtue, being content with one's lot, and having the Book of Changes as the foundation of all study. He took the Doctrine of the Mean as the basis of all his thought, and Confucius and Mencius as his role models, and scorned superstition and rejected magical teachings.