There haven't been genetic studies on grit, but we often think that challenge is inherited but grit is learned. That's not what science says. Science says grit comes from both nature and nurture.

Grit, in a word, is stamina. But it's not just stamina in your effort. It's also stamina in your direction, stamina in your interests. If you are working on different things but all of them very hard, you're not really going to get anywhere. You'll never become an expert.

I'm not a policy oriented person. I'm constrained to what I study. But educational policy has not yet taken adequate note of the whole child. Kids are not just their IQ or standardized test scores. It matters whether or not they show up, how hard they work.

Angela Duckworth Quotes