We still need conservationists who will attempt the impossible, achieving it because they aren't aware how impossible it is.

Polite conservationists leave no mark save the scars upon the Earth that could have been prevented had they stood their ground.

If you want to get people off drugs, improve reality.

Yet another proposal would have us rocket the waste into the sun, but, as you're probably aware, about one in ten of our space shots doesn't quite make it out of the earth's gravitational field.

Realistic' is a loaded word for me. Anyone who uses the word 'realistic' is all bad.

If I could go back to a point in history to try to get things to come out differently, I would go back and tell moses to go up the mountain again and get the other tablet. Because the Ten Commandments just tell us what we are supped to do with one another, not a word about our relationship to the earth. Genesis starts with these commands: multiply, replenish the earth, and subdue it. We have multiplied very well, we have replenished our populations very well, we have subdued it all too well, and we don't have any other instruction.

Even if you build the perfect reactor, you're still saddled with a people problem and an equipment problem.