The Uncertain Fate of Certain People

"Certainty itself is really an emotional state, not an intellectual one. To create a feeling of certainty, the brain must filter out far more information than it processes, which, of course, greatly increases its already high error rate during emotional arousal. In other words, the more certain you feel, the more likely you are wrong. 

“Life can be hard for the certain — reality simply won't cooperate with their view of it. Fortunately, life can also be exciting and more valuable for those who embrace its inherent uncertainty.”

— Psychologist Steven Stosny