A natural historian is somebody who looks at something in terms of its relationship to the rest of the natural world. You look at things ecologically. When you see a cow on a feedlot, you don't just see a cow; you see a cow that is eating certain food. You follow that food and that food takes you back to a corn field.

Eat only until you're 4/5 full. An ancient Japanese injunction.

Instead of eating exclusively from the sun, humanity now began to sip petroleum.

Eat with consciousness. When you eat with consciousness, and you know what you're eating, and you eat it in full appreciation of what it is, it's enormously satisfying.

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. And in the inner city, people don't have grocery stores. They have to get on a bus and take a long ride to get to a source of fresh produce.

Animals die even if you eat vegetables. That is the nature of farming. There is a certain sacrifice involved.

Most important thing about your diet is who cooks it, a human or a corporation.