What drives your actions at work—the desire to prove yourself or the desire to improve yourself? Proving yourself is about establishing your worth, raising your self-esteem and showing to others how knowledgeable, talented and skilled you are. People who try to prove themselves turn every moment into a contest—someone else must lose for them to win. Improving yourself involves measuring yourself against your own past self—how much are you learning, what’s getting better, are you evol...