...when any new idea was suggested in religion, in medicine, in science, in economics, in sociology, and indeed in almost any field of thought, the first question which the learned body having charge of that field and making a living out of it would ask itself was not whether the idea was good and true and would tend to the general welfare, but how it would immediately and directly affect the set of doctrines, traditions, and institutions, with the prestige of which their own personal interests were identified.