Unfortunately, instead of encouraging people to speak their thoughts, feelings, and opinions, we have discouraged people from speaking at all. We have encouraged “civil”–that is, noncontroversial–, conversations full of platitudes and qualifiers, devoid of feeling or passion, offending no one but saying nothing. We have squelched robust conversation for fear of offense or error, resulting in the suppression of both error and the truth. For fear of speaking wrong, we say nothing at all. False prophets are a problem, but the lack of any prophet is worse.
From Dr. Bill Fleming’s article in his website http://drbillfleming.blogspot.ca/