If we were to normalize relations right now, we would remove one of the biggest pieces of leverage we have to try to influence and change Iranian behavior.
The ego encourages you to constantly prove yourself and what you already know. When you are in the presence of someone you feel the need to impress, the ego's automatic response is 'I know. ' The moment you say 'I know,' you are demonstrating that you don't know. You can learn something valuable from everyone, in every situation.