It is one thing to be naive about things... you can be taught how to do it for the next time. You can be, and that is OK. The problem is when you choose not to learn on purpose. Then believe by using that knowledge you will succeed when you were told it was wrong. (You have heard the term you cannot fix stupid?)... turns out there is a cure but the person needs to lose the egoism before it can be done.
Tricking yourself into believing it is correct... as the naked man walks down the street saying he is wearing clothing turns to someone and says How do my pants look?, truly thinking his pants look just fine and that is what he ask the judge when he walked into his chambers