A very interesting essay I recently read from Y-Combinator co-founding Paul Graham on different types of disagreement and how you may be “attacked”. He details the difference between childish Name Calling “You smell” to Counter Argument “but as this data shows, the end result often behave like this” and Refuting the Central Point “Your case is based on the assumption that green means positive, but as this shows that is not always the case”. Its fascinating to read the in-depth analysis Paul Graham has put into this essay. If you would like to know how a great thinker (and doer)’s mind works, I would highly recommend reading the essays on his site.
 

http://www.paulgraham.com/disagree.html