Ralph Waldo Emerson Signed Carte-de-Visite.

Ralph Waldo Emerson was an American essayist, lecturer, and poet who led 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 thoughts through dozens of published essays and more than 1,500 public lectures across the United States.