It is absolutely imperative that we protect, preserve and pass on this genetic heritage for man and every other living thing in as good a condition as we received it.

When people say, 'You're not being realistic,' they're just trying to tag some thoughts that they can't otherwise handle.

Once we open the door to the plutonium economy, we expose ourselves to absolutely terrible, horrifying risks from these people.

All I know about thermal pollution is that if we continue our present rate of growth in electrical energy consumption it will simply take, by the year 2000, all our freshwater streams to cool the generators and reactors.

Truth and beauty can still win battles. We need more art, more passion, more wit in defense of the Earth.

Bring diversity back to agriculture. That's what made it work in the first place.

All technology should be assumed guilty until proven innocent