I've been called a catalyst more than a few times. My role in life is to shake things up, That makes me either a pest to those that prefer the staus quo or a breath a fresh air to those open to new ideas. I don't buy the "can't teach an old dog new tricks" bit. For one thing, I'm not a dog. For another, learning is a life-long activity.
Stretch your boundaries a little everyday but hold fast to your beliefs.
(And I believe spell check should be mandatory on every message board.)