People have to decide, first of all, how they'd like to live, and how secure they want to be from disaster. After that, scientists can help determine what would be necessary to achieve that.

By 1985 enough millions will have died to reduce the earth's population to some acceptable level, like 1.5 billion people.

I see harm reduction as a way of engaging people as part of that path to recovery.

We've all got to get together and demand something better out of our government and out of each other. We've got a system that's making us working harder, and isn't giving us satisfaction. We've got to sit down and decide what the hell we really want to be as human beings.

There are a lot of signs. One of the things that makes me most nervous is the disappearance of the frogs. They're going downhill all over the planet. Frogs are susceptible to all kinds of problems, because they require water to breed and their skin is very porous. Their condition is nerve racking.

The National Academy of Sciences would be unable to give a unanimous decision if asked whether the sun would rise tomorrow.

For example, I'm a great fan of pornography, but I don't see any reason not to restrict it so that people walking down the street who hate pornography don't have full color pictures outside of movie theaters. Let them be in a different district. I'm kidding about pornography, but you get the point.