Okay, it’s really not a secret. Everyone has heard of learning from our mistakes. But do you know the power of teaching from them? I can tell you this: It doesn’t happen much by accident. Let me boil it down for you. A mistake isn’t just a failure unless you leave it where it fell. If you learn from it, it is a lesson. If you use it to teach others, it becomes a victory. Now, that sounds  like a fortune cookie or a bit of...