I don't rule anything out, and I couldn't underscore more the importance of what YES! is doing to show that there are people who are pushing the edge of hope, who are stepping into the unknown and taking risks, because that will then enable others to do the same.

I get goose-bumps when you talk about Diane Wilson. Who knows where she found that courage? When she was a child, she would crawl under the bed when a stranger came to the house. But in 1989, she found out that her county in south Texas was ranked worst in the country for toxic waste. She wondered if the effluent, dumped into the waters where she and her family had shrimped for generations, might be responsible for the dwindling fish populations. And she suspected that her son's autism might be related to the pollution.

Nature is with us if we can learn how to align with it and not break the basic laws that generate life.

I believe it is possible that we can turn today's breakdown into a planetary breakthrough on one condition. We can do it if we can break free of a set of dominant but misleading ideas that are taking us down.

A life-long mission has been to counter the notion that political engagement is the spinach we must eat in order to have the dessert of freedom.

I think of Wangari Mathai in Kenya. If she started out saying she wanted to plant 20 million trees, she would have been laughed at. In fact, the foresters and the government did laugh at her. They said, "Villagers? Un-schooled villagers? Planting trees? No, no, no, it takes foresters." So she planted trees anyway.

My children threw me a life line: "Return to your roots - food - and rewrite your first book, Diet for a Small Planet." I learned that if I could just show up, in this case, if I could just get myself out of bed, get to the computer in my tiny office at MIT, and start writing, help would start arriving.