I love all trees, but I am in love with pines.

Conservation is a state of harmony between men and land.

Wilderness is the very stuff America is made of.

Twenty centuries of 'progress' have brought the average citizen a vote, a national anthem, a Ford, a bank account, and a high opinion of himself, but not the capacity to live in high density without befouling and denuding his environment, nor a conviction that such capacity, rather than such density, is the true test of whether he is civilized.

Like winds and sunsets, wild things were taken for granted until progress began to do away with them

All ethics so far evolved rest upon a single premise: that the individual is a member of a community of interdependent parts. . . The land ethic simply enlarges the boundaries of the community to include soils, waters, plants, and animals, or collectively: the land.

Education, I fear, is learning to see one thing by going blind to another.