Unlike any other form of thought, daydreaming is its own reward.

The interesting thing I learned was that if you're really concerned about your health, the best decisions for your health turn out to be the best decisions for the farmers and the best decisions for the environment-and that there is no contradiction there.

American farmers produced 600 more calories per person per day in 2000 than they did in 1980. But some calories got cheaper than others: Since 1980, the price of sweeteners and added fats (most of them derived, respectively, from subsidized corn and subsidized soybeans), dropped 20 percent, while the price of fresh fruits and vegetables increased by 40 percent.

In addition to contributing to erosion, pollution, food poisoning, and the dead zone, corn requires huge amounts of fossil fuel - it takes a half gallon of fossil fuel to produce a bushel of corn.

We are at once the problem and the only possible solution to the problem.

Once you introduce the issue to young people and suggest to them that they have the ability to vote with their forks, either by positively going for certain kinds of foods or rejecting other kinds of foods, they realize that this is a responsibility and an opportunity to shape the world a little bit by their own choices.

Eat mostly plants, especially leaves.