I don't think colleges are safe spaces. It's one thing to have a fraternity house or a community center where students can go and talk about their shared experiences. But it's another thing to have safe spaces in the sense that the university's providing them with protection from what they have to experience and find ways of protesting and resisting.

Free speech is what we all have and is guaranteed by the First Amendment of the US Constitution. Academic freedom refers to what happens in the university, particularly in the classroom, and to the importance of the teacher having the right to teach and share what he or she has learned, has proven her competence to teach, having gone through a series of tests and certifications including research and writing to demonstrate her abilities and knowledge.

Those who expect moments of change to be comfortable and free of conflict have not learned their history.

The reason you go to university is to be taught, is to learn how to think more clearly, to call into question the ideas that you came with and think about whether or not they are the ideas you will always want to hold. A university education at its best is a time of confusion and questioning, a time to learn how to think clearly about the values and principles that guide one's life. Of course, it's also a time to acquire the skills needed for jobs in the "real world," but the part about becoming an adult with ideals and integrity is also important.

The thing about education - and why I'm so passionate about the position and status of the university - is that it's supposed to teach citizens how to think better, how to think critically, how to tell truth from falsehood, how to make a judgment about when they're being lied to and duped and when they're not, how to evaluate scientific teaching. Losing that training of citizens is an extremely dangerous road to go down.

We've increasingly lost that sense of community, of the notion that there is something we contribute to and benefit from that is called the common good. I think I would date the beginnings of that loss to the Reagan administration and to the notion that somehow we were all separate individuals who only ought to be interested in ourselves.

Freedom of speech is about expressing your opinion, however bad or good, however right or wrong, and being able to defend it and argue it and be argued with about it in public forums. But that's not what academic freedom is about. That's not what the classroom is about.