Keep close to Nature's heart... and break clear away, once in awhile, and climb a mountain or spend a week in the woods. Wash your spirit clean.

No one should be able to enter a wilderness by mechanical means.

You may be able to fool the voters, but not the atmosphere.

We won't have a society if we destroy the environment.

I have a private plane. But I fly commercial when I go to environmental conferences.

I think the cost of energy will come down when we make this transition to renewable energy.

Unless we keep this planet healthy, everything else is for naught.

Birds are indicators of the environment. If they are in trouble, we know we'll soon be in trouble.

People blame their environment. There is only one person to blame - and only one - themselves.

Not all is doom and gloom. We are beginning to understand the natural world and are gaining a reverence for life - all life.