The Trump election brought it the fore and made it possible for a number of different groups whose aim is to stop the teaching of critical thinking to to launch direct attacks.

The university is the place where the pursuit of truth is taught, the rules for learning how to pursue it are explained, and students begin to understand how to evaluate the seriousness of truth. Those are incredibly important lessons, and only the teachers' academic freedom can protect them because there will always be people who disagree with or disapprove of the ideas they are trying to convey.

There are students whose religious upbringing is going to make them feel uncomfortable in a class where certain kinds of secular ideas are presented. There are students whose ideas about history or sexuality are going to be similarly challenged to question, to affirm or to change those ideas. That doesn't mean they shouldn't be exposed to them; that's why they're at school. That's why they come to university: to be taught how to think well and critically about material that they're being presented with. But it's the teacher who is certified to teach them how to do that.

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.

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 there is a disrespect for the mind that Trump, for example, exemplifies. His is a kind of strategic thinking that's more about shrewdness than about intellect. His attack on "elites" is meant to rally his base to rebel against the powers that be - in Washington especially. I don't think he cares much about higher education per se; he just wants to demonstrate that learning isn't necessary for business or government. He wants to elevate mediocrity to a heroic virtue.

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.