Humans on the Earth behave in some ways like a pathogenic micro-organism, or like the cells of a tumor.

I have heard that the Saudi Arabians are paying Greenpeace to campaign against Nuclear Power. It wouldn't surprise me at all.

NASA will send up a big sun shade that will be in orbit between the earth and sun and deflect 2 or 3 percent of the sunshine back into space. It would be cheaper than the international space station.

Evolution is a tightly coupled dance, with life and the material environment as partners. From the dance emerges the entity Gaia.

There aren't just bad people that commit genocide; we are all capable of it. It's our evolutionary history.

The problem is we don't know what the climate is doing. We thought we knew 20 years ago. That led to some alarmist books - mine included - because it looked clear-cut, but it hasn't happened.

Let's make hay while it lasts.

Perhaps the single most important thing that we can do to undo the harm we have done is to fix firmly in our minds the thought: the earth is alive.

Nature favors those organisms which leave the environment in better shape for their progeny to survive.

I suspect any worries about genetic engineering may be unnecessary. Genetic mutations have always happened naturally, anyway.

The oil companies regard nuclear power as their rival, who will reduce their profits, so they put out a lot of disinformation about nuclear power.

I’m dancing on land mines across your chest.Hoping high hopes I’ll trigger some

with his customary crooked smile, “are just too unlikely to dwell upon.

It's a recipe for disaster.

Truth in science is always determined from observational facts.

Nathan, how can you stand playing the same piece over and over again?" And Grandpa Nate answered, "Why don't you ask me how I can stand making love to the same woman over and over again?

Eliminate the cause of a mistake. Don't just clean it up.

Constantly choosing the lesser of two evils is still choosing evil.

I believe in what I do. I mean, I don't go out - I don't have the clothes or drink anymore, I don't do drugs or any of that. I used to. But I got very ready to get me out of the house.

It generally happens that assurance keeps an even pace with ability.

I was also known as Frodo because I was an early adopter of 'The Lord of the Rings.