Also related - the "backfire effect" - where challenging a person's core beliefs only entrenches them further. Nicely explained and illustrated here by The Oatm

Also related - the "backfire effect" - where challenging a person's core beliefs only entrenches them further. Nicely explained and illustrated here by The Oatmeal: http://theoatmeal.com/comics/believe http://theoatmeal.com/comics/believe