Henry David Thoreau (1817–1862) was an American essayist, poet and philosopher, born in Concord, Massachusetts, where he spent most of his short life. He studied at Harvard, worked for a time as a teacher and a pencil maker, and earned his living largely as a surveyor and handyman. He became part of the circle around Ralph Waldo Emerson and the Transcendentalist movement. Between 1845 and 1847 he lived in a small cabin by Walden Pond, an experiment in simple living that gave rise to his best-known book, Walden. He also wrote essays on nature, walking and travel, and a famous essay on resisting unjust government, which came out of his refusal to pay a tax during a period when the United States supported slavery and war with Mexico. He kept a vast journal and died of tuberculosis at forty-four. His ideas on nature, simplicity and conscience have influenced writers, naturalists and reformers around the world.
