“... I believe that engaging in research is the best way and the only certain way for a teacher to keep himself alive intellectually and to retain his spirit and enthusiasm to the end. And even if the {{w|college}} he serves regards teaching and not research as its chief business, even then, I contend, he must be given a reasonable amount of time and reasonable opportunities for research in order that he may keep his intellectural health, just as he is given time for physical exercise in order that he may maintain his bodily health.”