Here:

[T]hese universities, and Harvard is at the pinnacle of an exquisite system of intellectual production, are places of real mastery. That’s true in the sciences, the social sciences, and in the humanities. The people who get tenure at these institutions are custodians of the legacy of intellectual reflection and the production of ideas that goes back centuries. They are responsible for curating, transmitting, and augmenting our understanding of the problems of existence. They deal with questions of the origins of the universe, the origins of the species, with what is beautiful, and what is true. So with great respect, somebody sitting at a think tank who’s on a crusade of political criticism can’t be allowed to substitute for the collective judgment of these communities of reflection and refinement.