If something's going wrong with this planet we'd better fix it here and not look for some sort of escape.

Understanding how DNA transmits all it knows about cancer, physics, dreaming and love will keep man searching for some time.

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.

The wild places are where we began. When they end, so do we.

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

At that time a senator who was on the Joint Committee of Atomic Energy said rather quietly, 'You know, we're having a little problem with waste these days.' I didn't know what he meant then, but I know now.

I believe that the average guy in the street will give up a great deal, if he really understands the cost of not giving it up. In fact, we may find that, while we're drastically cutting our energy consumption, we're actually raising our standard of living.