The real lesson of 9/11 that I think we have still to learn is that this is a world of interdependence, in which all of the challenges of environment and climate change, of jobs, of disease, of war and terrorism, are cross-border problems that cannot be met one nation at a time.

By the laws of the land, people who come looking for jobs in America are illegal. But by the laws of economics, they are following the logic and laws of economics when they leave Guatemala and go to Mexico, leave Mexico and come to the U.S., leave Africa and go to Spain and Europe looking for jobs.

I don't divide the world into the weak and the strong, or the successes and failures...I divide the world into the learners and non-learners.

McWorld is a product of popular culture driven by expansionist commerce. Its template is American, its form style. Its goods are as much images as matériel, an aesthetic as well as a product line. It is about culture as commodity, apparel as ideology. Its symbols are Harley-Davidson motorcycles and Cadillac motorcars hoisted from the roadways, where they once represented a mode of transportation, to the marquees of global market cafés like Harley-Davidson's and the Hard Rock where they become icons of lifestyle.

When it comes to acid rain or oil spills or depleted fisheries or tainted groundwater or fluorocarbon propellants or radiation leaks or sexually transmitted diseases, national frontiers are simple irrelevant. Toxins don't stop for customs inspections and microbes don't carry passports. North America became a water and free-trade zone long before NAFTA loosened up the market in goods.

Civility is a work of the imagination, for it is through the imagination that we render others sufficiently like ourselves for them to become subjects of tolerance and respect, if not always affection.

The question to ask is not whether you are a success or a failure, but whether you are a learner or a nonlearner.