There are nuclear weapons in China Iran Korea and Pakistan. It wouldn't take much to send a couple of warheads off on this planet somewhere that would cause a lot of environmental damage then if you have got someone who wants to retaliate you have real problems.

I don't think it's too hippie to want to clean up the planet so you don't wind up dying of some kind of cancer when you're 45 years old. It enrages me that these big cancer-research organizations can't be bothered to man the front lines of environmental protest.

I don't see this planet being... they're talking about how they're turning around the environmental problems here but I think it's already too late.

Unless we keep this planet healthy everything else is for naught.

Our world faces a true planetary emergency. I know the phrase sounds shrill and I know it's a challenge to the moral imagination.

Journey with me to a true commitment to our environment. Journey with me to the serenity of leaving to our children a planet in equilibrium.

If you take any world problem any issue on the planet the solution to that problem certainly includes education. In education the roadblock is the laptop.

My childhood dreams were focused on being part of the effort to make humanity a multiplanetary species.

You have many years ahead of you to create the dreams that we can't even imagine dreaming. You have done more for the collective unconscious of this planet than you will ever know.

What is a television apparatus to man who has only to shut his eyes to see the most inaccessible regions of the seen and the never seen who has only to imagine in order to pierce through walls and cause all the planetary Baghdads of his dreams to rise from the dust.