At eighteen our convictions are hills from which we look; at forty-five they are caves in which we hide. ~ F. Scott Fitzgerald, Bernice Bobs her Hair
Richard Posner offers the most interesting observation about liberalism in academia that I've seen in a while:
Professors in the 26 to 35 year-old age range are less liberal and more moderate (though not more conservative) than older professors, which I attribute to those youngsters' having reached maturity after the collapse of communism. It is thus no surprise that only 1 percent of the young professors describe themselves as "left radicals" or "left activists," compared to 17 percent of those aged 50 or older.