Posted as a comment by Jack at Morality and Ideology …

I have an operational rule that I use in my own life. “Often wrong, but never in doubt.” I don’t mean that as a joke. In order to accomplish anything, you have to execute with confidence and certainty. On the other hand, you have to recognize that you will often be wrong. That means you must be willing to change. I know it is a paradox in theory, but it works in practice.