The challenge of ensuring adequate, nutrient-rich food for an expanding global population is a daunting one, especially given constraints on key resources like water and agricultural land.

Anyone will tell you if you want to run a business, you need to monitor costs and revenues. In the same manner, if you want to run your body, you need to monitor intake and returns. It's in your best interest.

Indeed, though people increasingly learn and interact online, we retain a fundamental need to engage in person.

You should not want to be a politician because you want to be president. You should be a politician because you want to fix the world or represent a movement.

Doing something totally new is tricky. If you are second - and if you are smart - you can learn from the first person's mistakes.

I have had the same apartment in New York City for almost 40 years but have actually lived in it for less than half of that time, owing to a busy travel schedule.

It offends me when people do useless work.

That's really why I want to go to space - I want to be weightless for so long that it gets boring.

My ambition is to figure out how to help people create their own health and how to turn that into a profitable business.

Summer is conference season - a critical time for building brands, making connections, and shaping industries.