After the journey around the world, writing Hope's Edge, I began to see that it is not possible to know what's possible - and therein lies our freedom.

I've grown certain that the root of all fear is that we've been forced to deny who we are.

Making conscious choices about what we eat, based on what the earth can sustain and what our bodies need, can help remind us that our whole society must begin to balance sustainable production with human need.

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.

The real cause of hunger is the powerlessness of the poor to gain access to the resources they need to feed themselves.

Our heavily meat-centered culture is at the very heart of our waste of the earth's productivity.

Individuality doesn't just mean individualism-standing alone. It means developing one's unique gifts, and being able to share them for the enjoyment of oneself and others.