Yuan dynasty history "is such an unpopular field that hardly anyone in Taiwan pays attention to it, but at Harvard there are not only professors who can teach it and students who want to study it but complete reference materials in all the various languages as well. You can't help being amazed!"
「這門學問這麼冷門，連國內都沒有什麼人注意，但在哈佛，這門學問已經有相當長久的歷史，不僅有教授能教、有學生願意學、而且各種語文的參考書籍齊備，實在令人不得不佩服！」