“We must learn to reawaken and keep ourselves awake, not by mechanical aids, but by an infinite expectation of the dawn.”
– Henry David Thoreau
Henry David Thoreau (1817-1862) was an author, philosopher, poet, abolitionist, and naturalist. He is the author of Walden, which is a philosophical argument for simple living and preservation of natural environment. He also had other important writings on natural history, environmentalism and civil disobedience.