The paradigm of physics - with its interplay of data, theory and prediction - is the most powerful in science.
Cities tolerate crazy people. Companies don't.
Tell me the size of a mammal and I can tell you, to about 85 per cent level, pretty much everything about its physiology and life history, such as how long it is going to live, how many offspring it will have, the length of its aorta, how long it will take to mature, what is the pulse rate in the ninth branch of its circuitry.
A human being at rest runs on 90 watts. That's how much power you need just to lie down. And if you're a hunter-gatherer and you live in the Amazon, you'll need about 250 watts. That's how much energy it takes to run about and find food.
When you look at a city, you know, it looks so unique. You feel this kind of uniqueness, you know, and especially if you go from a big city to a small city or if you go from one country to another. Cities look very different, often. They even feel very different. You know, and they are, of course. They certainly are.
Sometimes, I look out at nature and I think, 'Everything here is obeying my conjecture.' It's a wonderfully narcissistic feeling.
Cities are the crucible of civilization.
Slums could be thought of as the development of a special organ, or they could be thought of as a tumor that's grown, and in some ways is unhealthy and could ultimately lead to the city's destruction. My own feeling is that slums are probably a bit of both.
If you ask people why they move to the city, they always give the same reasons. They've come to get a job or follow their friends or to be at the center of a scene. That's why we pay the high rent. Cities are all about the people, not the infrastructure.
We form cities in order to enhance interaction, to facilitate growth, wealth creation, ideas, innovation, but in so doing, we create, from a physicist's viewpoint, entropy.
Your cells are not working as hard as your dog's but harder than your horse's. The bigger the animal, the less energy needed to sustain a gram of tissue.
I've always wanted to find the rules that govern everything. It's amazing that such rules exist. It's even more amazing that we can find them.
Every fundamental law has exceptions. But you still need the law or else all you have is observations that don't make sense. And that's not science. That's just taking notes.
Everything around us is scale dependent. It's woven into the fabric of the universe.
It's hard to kill a city, but easy to kill a company.
Exciting cities stay exciting, and boring cities stay boring.
When I first saw California, it was extraordinary. Because I came from old, black, dark England, still recovering from World War II. I grew up with bomb sites everywhere.
Cities are obvious metaphors for life. We call roads 'arteries' and so forth.
The bigger the city is, the less infrastructure you need per capita.
On average, an individual doesn't have a powerful connection with more than four to six people, and that's just as true here in the U.S. as it is in China.
