Free Speech

In the second chapter, he lays out more or less three arguments in favor of free expression. He says if an opinion is compelled to silence, that opinion may for all we can certainly know be true. And since the general or prevailing opinion on any subject is rarely or never the whole truth, it is only by the collision of adverse opinions that the remainder of the truth has any chance of being supplied. It helps the argue for that opinion argue the truth more vigorously.