Whatever has not come under the sway of man is wild. In this sense original and independent men are wild — not tamed and broken by society.—Journal, 3 September 1851
I wish to speak a word for Nature, for absolute Freedom and Wildness, as contrasted with a Freedom and Culture merely civil, — to regard man as an inhabitant, or a part and parcel of Nature, rather than a member of society.—"Walking"
What we call wildness is a civilization other than our own.—Journal, 16 February 1859
In Wildness is the preservation of the World.—"Walking"
We need the tonic of wildness — to wade sometimes in marshes where the bittern and the meadow-hen lurk, and hearing the booming of the snipe; to smell the whispering sedge where only some wilder and more solitary fowl builds her nest, and the mink crawls with its belly close to the ground.—Walden
It is in vain to dream of a wildness distant from ourselves. There is none such.—Journal, 30 August 1856
The most alive is the wildest.—"Walking"