Agriculture changes the landscape more than anything else we do. It alters the composition of species. We don't realize it when we sit down to eat, but that is our most profound engagement with the rest of nature.

I am glad I will not be young in a future without wilderness.

An early-morning walk is a blessing for the whole day.

If you look on the fungal genome as being soldier candidates protecting the U.S. as our host defense, not only for the ecosystem but for our population... we should be saving our old-growth forests as a matter of national defense.

Wilderness is not a luxury but a necessity of the human spirit, and as vital to our lives as water and good bread. A civilization which destroys what little remains of the wild, the spare, the original, is cutting itself off from its origins and betraying the principle of civilization itself.

Fog everywhere. Fog up the river where it flows among green airs and meadows; fog down the river, where it rolls defiled among the tiers of shipping, and the waterside pollutions of a great (and dirty) city.... Chance people on the bridges peeping over the parapets into a nether sky of fog, with fog all round them, as if they were up in a balloon and hanging in the misty clouds.