Physicists are atoms' way of thinking about atoms.

Everywhere throughout New England you find old, tumbledown field walls, often in the middle of the deepest, most settled- looking woods- a reminder of just how swiftly nature reclaims the land in America.

Think of a single problem confronting the world today. Disease, poverty, global warming... If the problem is going to be solved, it is science that is going to solve it. Scientists tend to be unappreciated in the world at large, but you can hardly overstate the importance of the work they do. If anyone ever cures cancer, it will be a guy with a science degree. Or a woman with a science degree.

My first rule of consumerism is never to buy anything you can't make your children carry.

And before long there will be no more milk in bottles delivered to the doorstep or sleepy rural pubs, and the countryside will be mostly shopping centers and theme parks. Forgive me. I don't mean to get upset. But you are taking my world away from me, piece by little piece, and sometimes it just pisses me off. Sorry.

So, if people didn’t settle down to take up farming, why then did they embark on this entirely new way of living? We have no idea – or actually, we have lots of ideas, but we don’t know if any of them are right. According to Felipe Fernández-Armesto, at least thirty-eight theories have been put forward to explain why people took to living in communities: that they were driven to it by climatic change, or by a wish to stay near their dead, or by a powerful desire to brew and drink beer, which could only be indulged by staying in one place.

But I got a great deal else from the experience. I learned to pitch a tent and sleep beneath the stars. For a brief, proud period I was slender and fit. I gained a profound respect for the wilderness and nature and the benign dark power of woods. I understand now, in a way I never did before, the colossal scale of the world. I found patience and fortitude that I didn't know I had. I discovered an America that millions of people scarcely know exists. I made a friend. I came home.