Every time we share something rather than own it ourselves, we reduce the stress on the planet. That could make the critical difference as the global population continues to grow.

Some of history's cleverest business minds understood the power of share platforms, from the aggressive titans who made fortunes building the nation's railroads, to Conrad Hilton, who created the first premier brand of international hotels.

When what you do and care about is aligned with what the market wants and cares about, you've created a recipe for career success.

Your brand is your public identity, what you're trusted for. And for your brand to endure, it has to be tested, redefined, managed, and expanded as markets evolve. Brands either learn or disappear.

You don't want to be ungenerous toward people who give you prizes, but it is never the social or political message that interests me in a novel. I begin with an interest in a relationship, a situation, a character.

The ice bucket challenge went viral in 2014, partly because it was so much fun to watch videos of celebrities or friends dumping ice water on their heads. Videos of people in the challenge have been watched more than 10 billion times on Facebook - more than once per person on the planet.

I really think that technology has the greatest potential to accelerate happiness of most things in the world. The companies that will ultimately do well are the companies that chase happiness. If you find a way to help people find love, or health or friendship, the dollar will chase that.

Being a teen can be tough. Just try to surround yourself with really good friends that really have your back, and also be a really good friend to those who really care about you. If you're not sure about certain things, talk to your friends that you trust and your family.