When we try to pick out anything by itself, we find it hitched to everything else in the universe.

Take a course in good water and air and in the eternal youth of Nature you may renew your own. Go quietly, alone no harm will befall you.

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

By polluting clear water with slime you will never find good drinking water.

The only way forward, if we are going to improve the quality of the environment, is to get everybody involved.

I can find God in nature, in animals, in birds and the environment.

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

If we do not permit the earth to produce beauty and joy, it will in the end not produce food, either.

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

I firmly believe that we can have a healthy environment and a sustainable timber industry.