UC Berkeley Chancellor on Free Speech
Excerpt: "But the most powerful argument for free speech is not one of legal constraint — that we’re required to allow it — but of value.
The public expression of many sharply divergent points of view is fundamental both to our democracy and to our mission as a university. The philosophical justification underlying free speech, most powerfully articulated by John Stuart Mill in his book, On Liberty, rests on two basic assumptions. The first is that truth is of such power that it will always ultimately prevail; any abridgement of argument therefore compromises the opportunity of exchanging error for truth. The second is an extreme skepticism about the right of any authority to determine which opinions are noxious or abhorrent. Once you embark on the path to censorship, you make your own speech vulnerable to it."