John Tierney in the New York Times took up that old favorite question of why university professors are so liberal. ...the profs do read the New York Times, so they were glad to write in to Mr. Tierney suggesting some possible explanations for the lack of conservatives in the academy. In his column he shared them with us. They are as follows: 1. Conservatives do not value knowledge for its own sake. 2. Conservatives do not care about the social good. 3. Conservatives are too greedy to work for professors' wages. 4. Conservatives are too dumb to get tenure. Tentatively,...