"It’s not just the right of the person who speaks to be heard; it is the right of everyone in the audience to listen and to hear. And every time you silence somebody, you make yourself a prisoner of your own action, because you deny yourself the right to hear something. In other words, your own right to hear and be exposed is as much involved in all these cases as is the right of the other to voice his or her view. Indeed, as John Stuart Mill said, if all in society were agreed on the truth and beauty and value of one proposition — all except one person — it would be most important, in fact it would become even more important, that that one heretic be heard, because we would still benefit from his perhaps outrageous or appalling view."
– Cristopher E. Hitchens