“We need the tonic of wildness...At the same time that we are earnest to explore and learn all things, we require that all things be mysterious and unexplorable, that land and sea be indefinitely wild, unsurveyed and unfathomed by us because unfathomable. We can never have enough of nature.”

American naturalist, essayist, poet, and philosopher

Henry David Thoreau was an American naturalist, essayist, poet, and philosopher. He is closely associated with the transcendentalist movement and is best known for Walden and for his essay "Civil Disobedience". Walden reflects on simple living in natural surroundings. "Civil Disobedience" argues that citizens may resist an unjust state. Thoreau's writing often returns to independence, conscience, and a close attention to nature.