The mythology of your culture hums in your ears so constantly that no one pays the slightest bit of attention to it. Of course man is conquering space and the atom and the deserts and the oceans and the elements. According to your mythology, this is what he was BORN to do.

If we continue...to consume the world until there's no more to consume, then there's going to come a day, sure as hell, when our children or their children or their children's children are going to look back on us - on you and me - and say to themselves, "My God, what kind of monsters were these people?"

You're captives of a civilizational system that more or less compels you to go on destroying the world in order to live. … You are captives—and you have made a captive of the world itself. That's what's at stake, isn't it?—your captivity and the captivity of the world.

Many of the biggest and most far-reaching investments we make in our lives are investments that have little or nothing to do with money.

TEACHER seeks pupil. Must have an earnest desire to save the world. Apply in person.

I hope it will not be too long before the technologies that support our population explosion begin to be perceived as no less hazardous to the future of life on this planet than the endless production of radioactive wastes.

May the forests be with you and with your children.