Cala a boca, faz favor?

There is a lot of abstract talk these days on American college campuses about free speech and the values of free inquiry, with lip service paid to expansive notions of free expression and the marketplace of ideas. What I’ve learned through my recent experience of writing a controversial op-ed is that most of this talk is not worth much. It is only when people are confronted with speech they don’t like that we see whether these abstractions are real to them.