Van der Waals—at that time head of an elementary school—wanted to become a HBS teacher in mathematics and physics and spent two years studying in his spare time for the required examinations.
范德瓦耳斯是當時一所小學的負責人，希望成為一名在哈佛商學院教授數學及物理課的教師，他花了兩年的空閒時間為所需要的考試做準備。