...when people already know they're deficient, they have nothing to lose by trying.

More and more research is suggesting that, far from being simply encoded in the genes, much of personality is a flexible and dynamic thing that changes over the life span and is shaped by experience.

This point is . . . crucial,” writes Dweck. “In the fixed mindset, everything is about the outcome. If you fail — or if you’re not the best — it’s all been wasted. The growth mindset allows people to value what they’re doing regardless of the outcome.

Wow, that's a really good score. You must have worked really hard.

For twenty years, my research has shown that the view you adopt for yourself profoundly affects the way you lead your life. It can determine whether you become the person you want to be and whether you accomplish the things you value.

Why waste time proving over and over how great you are, when you could be getting better? Why hide deficiencies instead of overcoming them? Why look for friends or partners who will just shore up your self-esteem instead of ones who will also challenge you to grow? And why seek out the tried and true, instead of experiences that will stretch you? The passion for stretching yourself and sticking to it, even (or especially) when it’s not going well, is the hallmark of the growth mindset. This is the mindset that allows people to thrive during some of the most challenging times in their lives.

This is hard. This is fun.