What is a Fixed vs a Growth Mindset?

One of my favorite psychology-related books that I’ve read in recent years is Carol Dweck’s Mindset: The New Psychology of Success. Carol presents the idea that people with a fixed mindset—those who believe that abilities are fixed—are less likely to flourish than those with a growth mindset—those who believe that abilities can be developed. Our mindset is the most powerful factor in achieving a number of outstanding accomplishments.