The mind is a superb lawyer, always building a case for what it already believes. Too bad it's a terrible judge. Another one of my favorite books! "Confirmation bias is a tendency to notice, accept, and remember information that appears to support an existing belief and to ignore, distort, explain away, or forget information that seems to contradict an existing belief. This process works undetected in the background of our minds to create the powerful illusion that the facts support our beliefs." The Skeptics' Guide to the Universe Steven Novella