If it came from a plant, eat it; if it was made in a plant, don't.

All the arguments about nutrition are really about what is the problem ingredient in the western diet. Is it the fat? Is it the lack of fiber? Is it the refined carbohydrates?But we don't have to worry about it. We just have to try to get off that diet to the extent we can.

I get letters from classes all the time. Say it's assigned in someone's 8th grade class, and the teacher asks everyone to write a letter to me about their impressions and what they learned. So, it's incredibly gratifying to hear.

Better to pay the grocer than the doctor.

One of the problems is that the US government supports unhealthy food and does very little to support healthy food. I mean, we subsidize high fructose corn syrup. We subsidize hydrogenated corn oil. We do not subsidize organic food. We subsidize four crops that are the building blocks of fast food. And you also have to work on access. We have food deserts in our cities. We know that the distance you live from a supplier of fresh produce is one of the best predictors of your health.

For is there any practice less selfish, any labor less alienated, any time less wasted, than preparing something delicious and nourishing for people you love?

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.