My Vietnamese wife has a growth mindset. A growth mindset is a positive outlook on one's capacity for improvement. She believes that abilities can be developed. She loves to learn. Always taking courses online, challenging herself. After working for 10+ years, she is getting another college degree. I met her on the italki website where English learners ask for feedback. She was happy for someone to point out her errors so she could learn. Her latest goal is to be an author. She just wrote a short book about her school years, completed it, and is selling it on Amazon, and is starting another. I suppose she is an extreme case, I am much lazier.
Some of my wife's coworkers resent her. They have fixed mindsets. People with fixed mindsets believe intelligence and talents are fixed traits. They avoid challenges where they might make mistakes, as they take criticism personally. If they get a C on a test, they associate that with being a C person, rather than one who simply needs to study the subject longer. They become jealous and threatened by the success of others. Often less ambitious, they were taught that their options in life are limited, and they just idle along.
Moral --
A growth mindset can be taught and encouraged in young people. If you have kids in your life, if you are a teacher, challenge the limiting beliefs that you hear from children. Reward them for effort, strategy and progress. Not for getting the right answer. It will help them to be resilient and confident, with more options in life.
(FYI google 'growth mindset' for videos etc)