Have fun saving the world, or you are just going to depress yourself.

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

There are many ways to salvation, and one of them is to follow a river.

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.

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.

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.

Perhaps most ridiculous of all is the suggestion that we 'keep' our radioactive garbage for the use of our descendants. This 'solution', I think, requires an immediate poll of the next 20,000 generations.