A few quotes:
"People who lack the knowledge or wisdom to perform well are often unaware of this fact. That is, the same incompetence that leads them to make wrong choices also deprives them of the savvy necessary to recognize competence, be it their own or anyone else's."
Feelings of absolute certainty and utter conviction are not rational deliberate conclusions; they are involuntary mental sensations generated by the brain. Like other powerful mental states such as love, anger and fear, they are extraordinarily difficult to dislodge through rational arguments. Just as it's nearly impossible to reason with someone who's enraged and combative, refuting or diminishing one's sense of certainty is extraordinarily difficult. Certainty is neither created by nor dispelled by reason.
In other words, we are as bad at judging ourselves as we are at judging others. Most cognitive scientists now believe that the majority of our thoughts originate in the areas of the brain inaccessible to conscious introspection. These beginnings of thoughts arrive in consciousness already colored with inherent bias. No two people see the world alike. Each of our perceptions is filtered through our genetic predispositions, inherent biologic differences and idiosyncratic life experiences. Your red is not my red. These differences extend to the very building blocks of thoughts; each of us will look at any given question from his own predispositions. Thinking may be as idiosyncratic as fingerprints.
So I want a president aware of how his mind works, as well as what he suspects are his inborn biases and intellectual limitations. Ironically, the acknowledgment of intellectual limitations may be the best evidence for superior decision-making skills. Contrary to George Bush's belief, we do not want certainty in the White House. We want flexibility and an acknowledgment that certainty is often a sign of ignorance.