The last word in ignorance is the man who says of an animal or plant: 'What good is it?

Tell me of what plant-birthday a man takes notice, and I shall tell you a good deal about his vocation, his hobbies, his hay fever, and the general level of his ecological education.

The good life of any river may depend on the perception of its music; and the preservation of some music to perceive.

No important change in ethics was ever accomplished without an internal chage in our intellectual emphasis, loyalties, affections, and convictions.

Harmony with land is like harmony with a friend; you cannot cherish his right hand and chop off his left.

To those who know the speech of hills and rivers straightening a stream is like shipping vagrants—a very successful method of passing trouble from one place to the next. It solves nothing in any collective sense.

We can be ethical only in relation to something we can see, feel, understand, love, or otherwise have faith in.