His 1836 essay "Nature," widely regarded as the manifesto of Transcendentalism, articulated his belief that divinity permeates the natural world. In 1837, he delivered "The American Scholar," which Oliver Wendell Holmes famously called America's "intellectual Declaration of Independence." His 1841 essay "Self-Reliance" remains a landmark celebration of individual autonomy and nonconformity.
Emerson published two influential collections, Essays (1841) and Essays: Second Series (1844), containing celebrated pieces such as "The Over-Soul" and "Experience." His poetry collections include Poems (1847) and May-Day (1867), featuring works like "The Concord Hymn" and "Brahma." Other notable works include The Conduct of Life (1860).
As a mentor to Henry David Thoreau and a friend of Walt Whitman, Emerson's ideas on individuality, nature, and spiritual freedom continue to influence literature and philosophy worldwide.