You'll learn something or meet someone today who educates you about an issue you thought you were already somewhat expert on. These new facts will be uncomfortable for you at first, because they don't fit neatly into your world view. But it's essential for you to accept what you learn: and change your opinion if need be. You cannot carry on with your old beliefs once you have new information. You're too smart for that. Show people that you are smart enough to admit when you're wrong.