People forget that eating represents their most profound engagement with the natural world. Through agriculture is how we change the world, more than anything else we do.

The food system is a very complex beast. There are people who are going to get their food at Wal-Mart or at Safeway; they're not going to the farmers' market. Those people need choices too.

Fairness forces you - even when you're writing a piece highly critical of, say, genetically modified food, as I have done - to make sure you represent the other side as extensively and as accurately as you possibly can.

Curiously, the one bodily fluid of other people that doesn't disgust us is the one produced by the human alone: tears. Consider the sole type of used tissue you'd be willing to share.

It's very important to get out, to do reporting. It's also really interesting. I come at it as a journalist, and I think that's helped me, and I come at it as someone who sees nature wherever he looks, and that helps.

We spend a remarkably small, shamefully small, percentage of our income on food. We manage to spend money on lots of other things. All up and down the social ladder you find people with plenty of money for cell phones, home entertainment systems, all other forms of entertainment.

A lawn is nature under totalitarian rule.