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

We may learn anew what compassion and beauty are, and pause to listen to the Earth's music.

I was actually telling people that - by harnessing the atom - we could enter a new era of unlimited power that would do away with the need to dam our beautiful streams.

I'm always impressed with what young people can do before older people tell them it's impossible

We cannot go on fiddling while the earth's wild places burn.

What we are finding out now is that there are not only limits to growth but also to technology and that we cannot allow technology to go on without public consent.

Some otherwise sane scientists have seriously proposed that we tuck this deadly garbage under the edges of drifting continents but how can they be sure the moving land masses will climb over the waste and not just push it forward?