Ralph Waldo Emerson (May 25, 1803 – April 27, 1882) was an American philosopher, lecturer, essayist, and poet, best remembered for leading the Transcendentalist movement of the mid-19th century. He was seen as a champion of individualism and a prescient critic of the countervailing pressures of society, and he disseminated his thought through dozens of published essays and more than 1,500 public lectures across the United States.
Emerson gradually moved away from the religious and social beliefs of his contemporaries, formulating and expressing the philosophy of Transcendentalism in his 1836 essay, Nature. Following this ground-breaking work, he gave a speech entitled The American Scholar in 1837, which Oliver Wendell Holmes, Sr. considered to be America's "Intellectual Declaration of Independence". Considered one of the great orators of the time, Emerson's enthusiasm and respect for his audience enraptured crowds.
Emerson wrote most of his important essays as lectures first, then revised them for print. His first two collections of essays – Essays: First Series and Essays: Second Series, published respectively in 1841 and 1844, represent the core of his thinking, and include such well-known essays as Self-Reliance, The Over-Soul and Circles, and The Poet and Experience. Together with Nature, these essays made the decade from the mid-1830s to the mid-1840s Emerson's most fertile period.--------------Emerson wrote on a number of subjects, never espousing fixed philosophical tenets, but developing certain ideas such as individuality, freedom, the ability for man to realize almost anything, and the relationship between the soul and the surrounding world. (Emerson's "nature" was more philosophical than naturalistic; "Philosophically considered, the universe is composed of Nature and the Soul.") While his writing style can be seen as somewhat impenetrable, and was thought so even in his own time, Emerson's essays remain one of the linchpins of American thinking, and Emerson's work has influenced nearly every generation of thinker, writer and poet since his time. When asked to sum up his work, he said his central doctrine was "the infinitude of the private man."