《元史·列传·卷三十》
有天顺帝看了徽宗的画，连声称好，巎巎进谏说 ：宋徽宗多才多艺，唯独当皇帝无能，宋朝为金所灭，他自己为金所俘，都是他无能做皇帝所致。皇帝最主要的才能就是当好皇帝，其他都是次要的。 巎巎敢于直言进谏。
帝察其真诚，虚己以听。特赐只孙燕服九袭及玉带楮币，以旌其言。
One day, Emperor Tianshun looked at Emperor Huizong's paintings and praised them repeatedly. Nangong remonstrated, saying, "Emperor Huizong of the Song Dynasty was multi-talented, but he was incompetent as an emperor. The Song Dynasty was destroyed by the Jin, and he himself was captured by the Jin. It was his incompetence as an emperor that led to this." Emperor Tianshun's main talent was being a good emperor, and all others were secondary. Nangong dared to speak his mind and advise him.