"People who think they know everything are a great annoyance to those of us who do."
- Isaac Asimov
I find it ironic that we sometimes treasure in ourselves the same attributes that annoy us in others. "Know-it-all-ness" is one of those.
It's good to know lots of things; being in this business requires a large reservoir of knowledge. But there's a big difference between being smart and being a smart-aleck, between being wise and being a wiseacre. One is a joy to be with. The other is insufferable.
So where's the line? And how can we recognize the difference when it comes to ourselves? That may just be the hardest thing of all for us to learn. "It takes considerable knowledge to realize the extent of our own ignorance." Thomas Sowell. But I believe discovering that is the beginning of wisdom.