"Professor van der Loon has accumulated his broad learning in just this way over a course of many years," remarks Wu Shou-li, a professor of Chinese literature at National Taiwan University who has known him for nearly thirty years.
「龍教授的博學就是這樣長年累月累積起來的」，吳守禮說。而做學術研究的人都知道，若是沒有「博學」做基礎，遇到瓶頸時就常會因為無法突破而擱淺。龍彼得見多識廣、觸類旁通，所以常能在「緊要關頭」為其他學者「指點迷津」，這也是他為人樂道之處。