The future of our children is a trust we have been given. To conserve and grow, not to squander wastefully on needless excesses. The earth is a trust, to protect and to honor. Our home, our livelihood, our future rests in the quality of our stewardship. Let us become better stewards.

The massive quantities of radiation that would be released in a war fought with nuclear weapons might, over time, cause such great changes in the human gene pool that following generations might not be recognizable as human beings.

As a physician, I see the earth as a patient in the intensive care unit. We have an acute clinical crisis on our hands and must take urgent action. My prescription for survival is that the American people rise up as they did in the 1980s, when 80 percent of Americans supported the nuclear weapons freeze.

I have witnessed the takeover of my world by plastic.

Every time you turn on an electric light, you are making another brainless baby.

Capitalism is destroying the earth.

It is clear to me that unless we connect directly with the earth, we will not have the faintest clue why we should save it.