In wildness is the preservation of the world.

I am here to plead his cause with you. I plead not for his life, but for his character - his immortal life; and so it becomes your cause wholly, and is not his…

Life consists with wildness. The most alive is the wildest. Not yet subdued to man, its presence refreshes him.

I do not wish to kill nor to be killed, but I can foresee circumstances in which both these things would be by me unavoidable. We preserve the so-called peace …

I come more and more to the conclusion that wilderness, in America or anywhere else, is the only thing left that is worth saving.

Leave it as it is. The ages have been at work on it and man can only mar it.

My job is to save the fucking wilderness. I don't know anything else worth saving.