injured a professor escorting moderate so badly she went to the hospital. some professors are fed up with this. people using violence to silence ideas, longtime english professor at middlebury, ask for coming on. >> thank you tucker it's good to be on your show. >> i doubt i'm just guessing you agree with charles murray i don't think you're a figure on the right. >> no. >> tucker: you're distressed about the unwillingness for students to disagree, you've come up with a list of principles, they were great. >> say nice things, go ahead. >> tucker: it's true, only by a contest of clashing viewpoints do we have any hope of replacing opinion with knowledge. a protest to prevent campus speakers to communicate with her on the audience is a coercive act. it all seems like obvious points, great points. are they not commonly shared on campus? >> actually i think they are