"A society of free speech needs lively exchange between the parties and not just loud voices from its eccentric fringe--and this is true, too, for universities. For lively exchange you need balance, as it is easy for a dominant majority to be unruffled by dissent when it is only from a token few. One could seek balance by declaring partisan opinion to be academically irrelevant, as when President Robert Sproul at Berkeley in the 1930s ... banned the use of university buildings for partisan purposes. Many social scientists in universities follow a similar logic when they adopt the fact/value distinction: "My science is over here and my values are over there; there's no connection!" The fact that most all of us are liberals, and hardly any conservative, is therefore irrelevant. Science is what matters, and that is impartial.
This attitude coexists at universities today with the opposite, postmodern view that science is only a mask of impartiality to conceal the partisan exercise of power. True impartiality being impossible, in this view, we should embrace partiality and politicize the university. Either way, whether from positivism or postmodernism, conservatives lose out. They are not necessary to be heard, and if they are heard, they do harm to progressive causes." - The Weekly Standard.