I think we do need to worry about a food shortage, but we also need to worry about the quality of the food. A lot of the stuff that's marketed to us tastes delicious because it fools our bodies. It fools our bodies into thinking that a particular mix of fat and salt and sugar is good for us. In fact, it isn't. That's why you're seeing in the United States life expectancies are declining, particularly in rural areas. You're seeing life expectancies falling in part because of diet.

When you have weird policy decisions in the United States that then ripple out throughout the world, the rest of the world really takes it on the chin. When the U.S. decides to set their corn on fire rather than to eat it, which is what the biofuels policy basically is - then that drives up the price of corn. It drives up the price of substitutes. And all of a sudden you have a sort of spiral of food prices. And other countries don't have the resources, because they're not allowed to, to weather the storm.

There are two novels that can transform a bookish 14-year-old's life: The Lord of the Rings and Atlas Shrugged. One is a childish daydream that can lead to an emotionally stunted, socially crippled adulthood ...in which large chunks of the day are spent inventing ways to make real life more like a fantasy novel. The other is a book about orcs.

I think we do need to worry about a food shortage, but we also need to worry about the quality of the food. A lot of the stuff that's marketed to us tastes delicious because it fools our bodies. It fools our bodies into thinking that a particular mix of fat and salt and sugar is good for us. In fact, it isn't. That's why you're seeing in the United States life expectancies are declining, particularly in rural areas. You're seeing life expectancies falling in part because of diet.

The problem is that we are living now with the consequences of the others people mistake. It would be nice to make our own and learn from them. That is the art of democracy. That is the art of citizenship.

Generosity makes us happiest. We'll be happier people when we share, not when we impose, but when we learn from one another. Because when I'm connected to everyone I disappear... in being excellent you lose yourself. And when you're connected to everyone, that's the best thing that can happen.

The opposite of consumption is not thrift - it is generosity.