Other people need a full night's sleep in order to function and be healthy and alert. But I'm different.

I studied, I met with medical doctors, scientists, and I’m here to tell you that the way to a more productive, more inspired, more joyful life is: getting enough sleep.

What's the third metric beyond money and power? I think it's a combination of wellbeing and wisdom. Because the problem also with defining success just in terms of money and power means that people feel that they have to work around the clock, burn out, and the result is people making terrible decisions.

We need to accept that we won't always make the right decisions, that we'll screw up royally sometimes - understanding that failure is not the opposite of success, it's part of success.

At the moment, our society’s notion of success is largely composed of two parts: money and power. But it’s time for a third metric, beyond money and power - one founded on well-being, wisdom, our ability to wonder, and to give back.

I come from a Greek household. My mother wouldn't let the FedEx man come in without eating.

More young people are volunteering than ever before. More people are including service to others on their busy lives' to do list. The promise of America is embedded deep in our DNA, calling us to a much less shallow search for happiness and meaning.