David's posts about identifying schools conservatives and libertarians will find safe and respectful raises an interesting question: If you are conservative or libertarian, are you better off going to a school with lots of other conservatives or libertarians? We can ask the same question on the other side: If you identify as progressive, should you look for schools with lots of progressives?

  My own take may be idiosyncratic, but let me put in a plug for attending an institution that does not share your basic ideological outlook. I think we can all agree that an open and respectful environment is essential. But beyond that, I think there are real educational benefits to being outside your ideological comfort zone. In my experience, at least, we tend to learn most when we are challenged; being forced to explain why you think how you think is the best way to improve your thinking. As an old boss of mine used to say, "If everyone is thinking the same thing, no one's thinking much."