All of us want to be good at our jobs, but how good do we really want to be?

Quite good.
Good.
Very good.
The best in our field.
Or the best in the world?
Talent helps, but it won't take you as far as ambition. Everybody wants to be good, but not many are prepared to make the sacrifices it takes to be great. To many people, being nice in order to be liked is more important. There's equal merit in that, but you must not confuse being good with liked.