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.

The human animal is adapted to, and apparently can thrive on, an extraordinary range of different diets, but the Western diet, however you define it, does not seem to be one of them.

I think that there's some brainwashing going on with this idea that we don't have time to cook anymore. We have made cooking seem much more complicated than it is, and part of that comes from watching cooking shows on television-we've turned cooking into a spectator sport. ...My wife and I both work, and we can get a very nice dinner on the table in a half hour. It would not take any less time for us to drive to a fast-food outlet and order, sit down, and bus our table.

...A one-pound box of prewashed lettuce contains 80 calories of food energy. According to Cornell ecologist David Pimentel, growing, chilling, washing, packaging, and transporting that box of organic salad to a plate on the East Coast takes more than 4,600 calories of fossil fuel energy, or 57 calories of fossil fuel for every calorie of food.

...forgetting is vastly underrated as a mental operation.

Our ingenuity in feeding ourselves is prodigious, but at various points our technologies come into conflict with nature's ways of doing things, as when we seek to maximize efficiency by planting crops or raising animals in vast mono-cultures. This is something nature never does, always and for good reasons practicing diversity instead. A great many of the health and environmental problems created by our food system owe to our attempts to oversimplify nature's complexities, at both the growing and the eating ends of our food chain.

I really do think that cooking is very important. It's really important for the farmers because it means you're going to be buying real food and not processed food, so that means the farmers will capture more of your food dollar.