The theory of academic of B. R. Clark
Clark starts from a "Matrix" and diversified academic world, by discussing the theories of academic differentiation, such as the evolution of a disciplinary base, the evolution of institution, the contemporary division of the profession, and the contemporary distribution of faculty, he shows that diversified and differentiated system of higher education is the proper mechanism for the coexistence of Mass and Elite higher education. The development of academic profession provides the source of maintaining the intrinsic attributes of academic world, and a kind of power of integrity.