Excellent article on disciplined and thoughtful disagreement

"The paradox of reform movements is that, if you want to defy authority,
you probably shouldn't think entirely for yourself. You should attach
yourself to a counter-tradition and school of thought that has been
developed over the centuries and that seems true."

http://www.nytimes.com/2012/02/03/opinion/brooks-how-to-fight-the-man.html