The only teaching that appealed to his imagination was a course of lectures by Louis Agassiz on the Glacial Period and Paleontology, which had more influence on his curiosity than the rest of the college instruction altogether.

唯一能激发他想象力的教学是路易斯·阿加西 (Louis Agassiz) 关于冰河时期和古生物学的讲座课程，这门课程比其他大学教学更能激发他的好奇心。