I spent most of my career doing high-energy physics, quarks, dark matter, string theory and so on.

Everything around us is scale dependent. It's woven into the fabric of the universe.

My provocative statement is that we desperately need a serious, scientific theory of cities and scientific theory means quantifiable, relying on underlying generic principles that can be made in a - put into a predictive framework. That's the quest.

You could not have evolved a complex system like a city or an organism - with an enormous number of components - without the emergence of laws that constrain their behavior in order for them to be resilient.

Most people go to ashrams or retreats to destress and rejuvenate themselves. But I come back to my roots, the place where I spent half my life. And when I return, I spend time in the farms, eating a stalk of sugarcane, driving a tractor, and chilling with childhood friends.

You want to have that trust with your QB; you want to build that camaraderie throughout your team and just have that relationship with them, so when you're out there, he doesn't have anything to worry about. He tells you to run this route, you run it to the best of your ability and be there for him.

Where most politicians would have abandoned a supporter like Jeremiah Wright and the community he served, Obama, while strongly criticizing him, did not throw his friend overboard.

Starbucks has a role and a meaningful relationship with people that is not only about the coffee.