Nature is an essay by Ralph Waldo Emerson published anonymously in 1836. It is in this essay where the foundation of transcendentalism is put forth, a belief system that espouses a non-traditional vision of nature. Building on his early lectures, Emerson defines nature as an all-encompassing divine entity inherently known to us in our unfettered innocence, rather than as merely a component of a world ruled by a divine, separate being learned by us through passed-on teachings in our experience.

Most scholars identify Emerson as the first writer to develop a literary style and vision that is uniquely American, rather than following in the footsteps of Longfellow and others who were strongly influenced by their British cultural heritage. And "Nature" is the first significant work to establish this new way of looking at The Americas and its raw, natural environment. In England, all natural things are a reference to layers of historical events, a reflection of human beings. However, in America, all of nature was relatively new to Western Civilization with no man-made meaning. With this clean slate, as it were, Emerson was enabled to see nature through new eyes and rebuild nature's role in the world.