Recreational development is a job not of building roads into lovely country, but of building receptivity into the still unlovely human mind.

We stand guard over works of art, but species representing the work of aeons are stolen from under our noses

What a dull world if we knew all about geese!

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

Wilderness is a resource which can shrink but not grow.

One of the penalties of an ecological education is that one lives alone in a world of wounds. Much of the damage inflicted on land is quite invisible to laymen. An ecologist must either harden his shell and make believe that the consequences of science are none of his business, or he must be the doctor who sees the marks of death in a community that believes itself well and does not want to be told otherwise.

If we lose our wilderness, we have nothing left worth fighting for.