I read a book in the late 1990s called The Anatomy of Human Destructiveness, by Erich Fromm, and it had a profound impact on me. Fromm takes Descartes' statement, "I think, therefore I am" and changes it to "I effect, therefore I am."

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

For me, just showing up for the traveling and writing gave me the power to overcome my fear of fear.

I think we are at a new evolutionary stage. We evolved in tight-knit tribes in which we faced death if we didn't have the support of the rest of the tribe.

Recent breakthroughs in science show we have just the capacities we need to face our planet's challenges. We're "soft-wired" for cooperation, empathy, fairness, along with a deep need to "make a dent," as social philosopher Erich Fromm put it. My hunch is that one reason depression is a global pandemic is that the dominant mental map denies so many of us expression of these deep needs and capacities.

How we frame the world - how we talk about it and define it - affects how we see things and how we live.

Recently, [Diana Wilson] went on a hunger strike to protest Dow Chemical's refusal to accept responsibility for a 1984 chemical disaster in Bhopal, India, caused by a company they now own, Union Carbide. In the past, Diane's hunger strikes had been lonely affairs, but this time friends and co-conspirators from around the country took turns joining her on her flatbed truck under the hot Texas sun, greeting Dow workers as they entered the plant.