"Moreover, people with a fixed mindset believe they can only do things they show a natural aptitude for – that practice certainly does not make perfect. Since they are quick to judge themselves and other people as being good or bad at something, they assume others are judging them all the time, too. Thus, they feel the need to show how talented and smart they are every chance they get. They believe their entire personality is at stake: one slip-up could be enough to brand them as incompetent fools for life. They constantly seek approval from others to protect their egos and confirm that they really are as great as they think they are."
in Mindset by Carol Dweck on Blinkist. Blinkist offers the best knowledge from nonfiction in powerful, memorable packs.