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.

Negative feelings are typical of learning, and you shouldn't feel like you're stupid when you're frustrated doing something. You might say to yourself, 'I can't do this,' but you should say, 'That's great.' That means you really have the potential to learn something there.

Many things matter other than our measured intelligence, so let's get to work on them.

I think the very idea of character, of developing not just grit, but empathy and curiosity, emotional intelligence - you know, the things that I want my own daughters to develop - the idea that we're going to get there through rewards and punishments seems completely at odds with the idea of character itself.

Once I started the first school, I realized this is what my life is meant to be, is to promote education and help kids go to school, and that's very clear.

It used to take me forever to read and comprehend stuff, so I decided not to make the 'Captain Underpants' books too challenging. Don't get me wrong - the humor and ideas are often sophisticated - but the books aren't hard to read. I wanted kids who hate reading to find these books irresistible.

We have to diversify our economy. We have to create jobs. We have to focus on education, more training programmes.

I liked school, but I used to dread those moments when the teacher would call me up to give an oral report. I forced myself to deal with it and not dwell on the class in front of me - to keep a straight face, give the report and concentrate on getting it right. That's normally how I perform. That's how I am.