Protesting against slaughter – as students in the US are doing – isn’t antisemitism

‘Universities should go out of their way to tolerate expression that may make some people uncomfortable.’ Photograph: Sarah Yenesel/EPA

The most important thing I teach my students is to seek out people who disagree with them.

That’s because the essence of learning is testing one’s ideas, assumptions and values. And what better place to test ideas, assumptions and values than at a university?