One thing that's true of gritty people is they love what they do, and they keep loving what they do. So they're not just in love for a day or a week. People who are really gritty - they're still interested.

I know a lot of CEOs who are looking for three- to four-year varsity athletes - not necessarily because these people are going to be doing pushups or spiking volleyballs in the workplace, but because they're looking for that continuity, that person who was gritty about something.

I will say that if my wildest dreams come true, I will, like, wake up one day, and I will be Carol Dweck, right? Because she is like everything I want to be.

There's no one thing that is true. They're all true.

Gritty people train at the edge of their comfort zone. They zero in on one narrow aspect of their performance and set a stretch goal to improve it.

To me, the most shocking thing about grit is how little we know, how little science knows, about building it. Every day, parents and teachers ask me, 'How do I build grit in kids? What do I do to teach kids a solid work ethic? How do I keep them motivated for the long run?' The honest answer is, I don't know.