A form of philosophy inaugurated in the 18th century by Immanuel Kant and developed in the USA in the mid-19th century into a mystical and social doctrine. As opposed to metaphysics in the traditional sense, transcendental philosophy is concerned with the conditions of possibility of experience, rather than the nature of being. It seeks to show the necessary structure of our `point of view' on the world. Introduced to England, transcendentalism influenced the writers Samuel Coleridge and Thomas Carlyle. In the USA it was taken up in New England about 1840-60, influenced by European Romanticism, by Henry Thoreau, Ralph Waldo Emerson, the feminist Margaret Fuller (1810-50), and Orestes Brownson, who saw God as immanent in nature and the human soul. Transcendentalism had religious, philosophical, and political implications, shaping American ideals of self-reliance, attitudes towards reform and slavery-abolition, feminism, and various forms of Utopian idealism displayed in the movement's experimental community at Brook Farm near Boston, Massachusetts. Emphasizing the role of the poet and the need for an original US literature, it also had literary consequences, and out of it came Emerson's essays and poems, Jones Very's poetry, Thoreau's Walden 1854, and, less directly, the novels and stories of Nathaniel Hawthorne, and Walt Whitman's Leaves of Grass 1855.