Have you ever been absolutely convinced of something, so certain that you would defend it or explain it or insist on it to anyone -- only to later discover that it was wrong? I have, and it doesn't feel great, does it? We can all fall into a habit of believing our beliefs so strongly that there's no room for learning. What feels most comfortable seems most true. Only, not always. Certainty is no measure of truth. No matter how true something seems, check for evidence. -- doug smith Call to Action: Write down one sentence on something that you are absolutely certain about. Now, write down three pieces of evidence for that certainty. What do you think?