“In my whole career I’ve been passing men with greater bravado and confidence. Confidence gets you off to a fast start. Confidence gets you that first job and maybe the next two promotions. But confidence stops you from learning. Confidence becomes a caricature after a while. I can’t tell you how many confident blowhards I’ve seen in my coaching career who never got better after the age of forty.”

– Super Bowl winning coach Bill Walsh, quoted from Rich Karlgaard’s book Late Bloomers