Human irrationality and the purpose of a liberal arts education

There's a very interesting post by Lane Wallace at the Atlantic, called "All Evidence to the Contrary".

In other words, if people start with a particular opinion or view on a subject, any counter-evidence can create "cognitive dissonance"--discomfort caused by the presence of two irreconcilable ideas in the mind at once. One way of resolving the dissonance would be to change or alter the originally held opinion. But the researchers found that many people instead choose to change the conflicting evidence--selectively seeking out information or arguments that support their position while arguing around or ignoring any opposing evidence, even if that means using questionable or contorted logic.

So where does education come into the picture? Obvious enough:

A liberal education, [UCLA professor Mark] Kleiman says, "ought, above all, to be an education in non-attachment to one's current opinions. I would define a true intellectual as one who cares terribly about being right, and not at all about having been right." Easy to say, very hard to achieve. For all sorts of reasons. But it's worth thinking about. Even if it came at the cost of sacrificing or altering our most dearly-held opinions ... the truth might set us free.

Very, very interesting. Read the whole thing! (Yes, I have more work than I can get done, and I'm procrastinating.)