《元史·列传·卷七十六》
年龄稍大，更加自勉奋发学习。对天文、地理、礼乐、兵谋、阴阳、律历之类的书，无不认真研究。
比长，益自策励，凡天文、地形、礼乐、田乘、兵谋、阴阳、律历之书，靡不毕究。
When he grew older, he became more self-motivated and studious. He studied seriously books on astronomy, geography, rites, music, military strategy, yin and Yang, and calendars.