Mathematical research is also becoming highly professionalized in the worst sense of that term. Research performed voluntarily and sincerely by devoted souls, research as a relish of knowledge, is to be welcomed even if the results are minor. But hothouse-grown research, which crowds the journals and promotes only promotion, is a drag on science.
Why the Professor Can't Teach: Mathematics and the Dilemma of, University Education, Chapter 3 (p. 67), St. Martin's Press. 1977