Some are born great, some achieve greatness, and some have greatness thrust upon 'em. -- Twelfth Night, Act II, Scene V
My Take - There are very few heroes in our world that are prepared to be heroes. Most people who have that title put on their name woke up the day they earned it and got on with life just like everyone else. It was when life threw something extraordinary at them and they reacted to it in a way that few others could or would that they became heroes. I always try to remember that my heroes are almost always ordinary people who had something in them that let them do extraordinary things.