Henry David Thoreau

Henry David Thoreau (born David Henry Thoreau; July 12, 1817 – May 6, 1862) was an American naturalist, essayist, poet, and philosopher. A leading transcendentalist, he is best known for his book Walden, a reflection upon simple living in natural surroundings, and his essay "Civil Disobedience" (originally published as "Resistance to Civil Government"), an argument in favor of citizen disobedience against an unjust state.

Thoreau's books, journals, and poetry amount to more than 20 volumes. Among his lasting contributions are his writings on natural history and philosophy, in which he anticipated the methods and findings of ecology and environmental history, two sources of modern-day environmentalism. His literary style interweaves close observation of nature, personal experience, pointed rhetoric, symbolic meanings, and historical lore, while displaying a poetic sensibility, philosophical austerity, and attention to practical detail. He was also deeply interested in the idea of survival in the face of hostile elements, historical change, and natural decay; at the same time he advocated abandoning waste and illusion to discover life's true essential needs.

Thoreau was a lifelong abolitionist, delivering lectures that attacked the fugitive slave law while praising the writings of Wendell Phillips and defending the abolitionist John Brown. Thoreau's philosophy of civil disobedience later influenced the political thoughts and actions of notable figures such as Leo Tolstoy, Mahatma Gandhi, and Martin Luther King Jr.

Sometimes, Thoreau is retrospectively referred to as an anarchist, but he may be more properly regarded as a proto-anarchist.

Amos Bronson Alcott (who wrote in 1860 that "He is rightly named Thorough") and Thoreau's aunt each wrote that "Thoreau" is pronounced like the word thorough, pronounced as THURR-oh in General American, but more precisely as THAWR-oh in 19th century New England.

In 1918, Edward Waldo Emerson wrote: "We always called my friend Thórow, the h sounded, and accent on the first syllable."

In the early 20th century, a resurgence in foreign interest in Thoreau's work caused people to assume that the name was of foreign origin, leading modern-day American English speakers to commonly (mis)pronounce the name thə-ROH, with the stress on the second syllable.

Thoreau had a distinctive appearance, with a nose that he called his "most prominent feature". Of his appearance and disposition, Ellery Channing wrote:

His face, once seen, could not be forgotten. The features were quite marked: the nose aquiline or very Roman, like one of the portraits of Caesar (more like a beak, as was said); large overhanging brows above the deepest set blue eyes that could be seen, in certain lights, and in others gray,—eyes expressive of all shades of feeling, but never weak or near-sighted; the forehead not unusually broad or high, full of concentrated energy and purpose; the mouth with prominent lips, pursed up with meaning and thought when silent, and giving out when open with the most varied and unusual instructive sayings.

Henry David Thoreau was born David Henry Thoreau in Concord, Massachusetts, into the "modest New England family" of John Thoreau, a pencil maker, and Cynthia Dunbar. His father was of French Protestant descent. His paternal grandfather had been born on the UK crown dependency island of Jersey. His maternal Scottish-American grandfather, Asa Dunbar, led Harvard's 1766 student "Butter rebellion", the first recorded student protest in the American colonies. David Henry was named after his recently deceased paternal uncle, David Thoreau. He began to call himself Henry David after he finished college; he never petitioned to make a legal name change.

He had two older siblings, Helen and John Jr., and a younger sister, Sophia Thoreau. None of the children married. Helen (1812–1849) died at age 37, from tuberculosis. John Jr. (1814–1842) died at age 27, of tetanus after cutting himself while shaving. Henry David (1817–1862) died at age 44, of tuberculosis. Sophia (1819–1876) survived him by 14 years, dying at age 56, of tuberculosis.

He studied at Harvard College between 1833 and 1837. He lived in Hollis Hall and took courses in rhetoric, classics, philosophy, mathematics, and science. He was a member of the Institute of 1770 (now the Hasty Pudding Club). According to legend, Thoreau refused to pay the five-dollar fee (approximately equivalent to $161 in 2025) for a Harvard master's diploma, which he described thus: Harvard College offered it to graduates "who proved their physical worth by being alive three years after graduating, and their saving, earning, or inheriting quality or condition by having Five Dollars to give the college". He commented, "Let every sheep keep its own skin", a reference to the tradition of using sheepskin vellum for diplomas.

Thoreau's birthplace still exists on Virginia Road in Concord. The house has been restored by the Thoreau Farm Trust, a nonprofit organization, and is now open to the public.

The traditional professions open to college graduates—law, the church, business, medicine—did not interest Thoreau, so in 1835 he took a leave of absence from Harvard, during which he taught at a school in Canton, Massachusetts, living for two years at an earlier version of today's Colonial Inn in Concord. His grandfather owned the earliest of the three buildings that were later combined. After he graduated in 1837, Thoreau joined the faculty of the Concord public school, but he resigned after a few weeks rather than administer corporal punishment. He and his brother John then opened the Concord Academy, a grammar school in Concord, in 1838. They introduced several progressive concepts, including nature walks and visits to local shops and businesses. The school closed when John became fatally ill from tetanus in 1842 after cutting himself while shaving. He died in Henry's arms.

Upon graduation Thoreau returned home to Concord, where he met Ralph Waldo Emerson through a mutual friend. Emerson, who was 14 years his senior, took a paternal and at times patron-like interest in Thoreau, advising the young man and introducing him to a circle of local writers and thinkers, including Ellery Channing, Margaret Fuller, Bronson Alcott, and Nathaniel Hawthorne and his son Julian Hawthorne, who was a boy at the time.

Emerson urged Thoreau to contribute essays and poems to a quarterly periodical, The Dial, and lobbied the editor, Margaret Fuller, to publish those writings. Thoreau's first essay published in The Dial was "Aulus Persius Flaccus", an essay on the Roman poet and satirist, in July 1840. It consisted of revised passages from his journal, which he had begun keeping at Emerson's suggestion. The first journal entry, on October 22, 1837, reads, "'What are you doing now?' he asked. 'Do you keep a journal?' So I make my first entry to-day."

Thoreau was a philosopher of nature and its relation to the human condition. In his early years he followed transcendentalism, a loose and eclectic idealist philosophy advocated by Emerson, Fuller, and Alcott. They held that an ideal spiritual state transcends, or goes beyond, the physical and empirical, and that one achieves that insight via personal intuition rather than religious doctrine. In their view, Nature is the outward sign of inward spirit, expressing the "radical correspondence of visible things and human thoughts", as Emerson wrote in Nature (1836).

On April 18, 1841, Thoreau moved in with the Emersons. There, from 1841 to 1844, he served as the children's tutor; he was also an editorial assistant, repairman and gardener. For a few months in 1843, he moved to the home of William Emerson on Staten Island, and tutored the family's sons while seeking contacts among literary men and journalists in the city who might help publish his writings, including his future literary representative Horace Greeley.

I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived. I did not wish to live what was not life, living is so dear; nor did I wish to practice resignation, unless it was quite necessary. I wanted to live deep and suck out all the marrow of life, to live so sturdily and Spartan-like as to put to rout all that was not life, to cut a broad swath and shave close, to drive life into a corner, and reduce it to its lowest terms, and, if it proved to be mean, why then to get the whole and genuine meanness of it, and publish its meanness to the world; or if it were sublime, to know it by experience, and be able to give a true account of it in my next excursion.

Thoreau felt a need to concentrate and work more on his writing. In 1845, Ellery Channing told Thoreau, "Go out upon that, build yourself a hut, & there begin the grand process of devouring yourself alive. I see no other alternative, no other hope for you." Thus, on July 4, 1845, Thoreau embarked on a two-year experiment in simple living, moving to a small house he had built on land owned by Emerson in a second growth forest around the shores of Walden Pond, having had a request to build a hut on Flints Pond, near that of his friend Charles Stearns Wheeler, denied by the landowners due to the Fairhaven Bay incident. The house was in "a pretty pasture and woodlot" of 14 acres (5.7 hectares) that Emerson had bought, 1+1⁄2 miles (2.5 kilometers) from his family home. Whilst there, he wrote his only extended piece of literary criticism, "Thomas Carlyle and His Works".

On July 24 or July 25, 1846, Thoreau ran into the local tax collector, Sam Staples, who asked him to pay six years of delinquent poll taxes. Thoreau refused because of his opposition to the Mexican–American War and slavery, and he spent a night in jail because of this refusal. The next day Thoreau was freed when someone, likely to have been his aunt, paid the tax, against his wishes. The experience had a strong effect on Thoreau. In January and February 1848, he delivered lectures on "The Rights and Duties of the Individual in relation to Government", explaining his tax resistance at the Concord Lyceum. Bronson Alcott attended the lecture, writing in his journal on January 26:

Heard Thoreau's lecture before the Lyceum on the relation of the individual to the State—an admirable statement of the rights of the individual to self-government, and an attentive audience. His allusions to the Mexican War, to Mr. Hoar's expulsion from Carolina, his own imprisonment in Concord Jail for refusal to pay his tax, Mr. Hoar's payment of mine when taken to prison for a similar refusal, were all pertinent, well considered, and reasoned. I took great pleasure in this deed of Thoreau's.

Thoreau revised the lecture into an essay titled "Resistance to Civil Government", commonly known as "Civil Disobedience". It was published by Elizabeth Peabody in the Aesthetic Papers in May 1849. Thoreau had taken up a version of the principle enunciated by Percy Shelley in his political poem "The Mask of Anarchy" (1819), which begins with powerful images of the unjust forms of authority of his time and then imagines the stirrings of a radically new form of social action.

In 1851, Thoreau became increasingly fascinated with natural history and narratives of travel and expedition. He read avidly on botany and often wrote observations on this topic into his journal. He admired William Bartram and Charles Darwin's Voyage of the Beagle. He kept detailed observations on Concord's nature lore, recording everything from how the fruit ripened over time to the fluctuating depths of Walden Pond and the days certain birds migrated. The point of this task was to "anticipate" the seasons of nature, in his word.

He became a land surveyor and continued to write increasingly detailed observations on the natural history of the town, covering an area of 26 square miles (67 square kilometers), in his journal, a two-million-word document he kept for 24 years. He also kept a series of notebooks, and these observations became the source of his late writings on natural history, such as "Autumnal Tints", "The Succession of Trees", and "Wild Apples", an essay lamenting the destruction of the local wild apple species.

With the rise of environmental history and ecocriticism as academic disciplines, several new readings of Thoreau began to emerge, showing him to have been both a philosopher and an analyst of ecological patterns in fields and woodlots. For instance, "The Succession of Forest Trees", shows that he used experimentation and analysis to explain how forests regenerate after fire or human destruction, through the dispersal of seeds by winds or animals. In this lecture, first presented to a cattle show in Concord, and considered his greatest contribution to ecology, Thoreau explained why one species of tree can grow in a place where a different tree did previously. He observed that squirrels often carry nuts far from the tree from which they fell to create stashes. These seeds are likely to germinate and grow should the squirrel die or abandon the stash. He credited the squirrel for performing a "great service ... in the economy of the universe."

He traveled to Canada East once, Cape Cod four times, and Maine three times; these landscapes inspired his "excursion" books, A Yankee in Canada, Cape Cod, and The Maine Woods, in which travel itineraries frame his thoughts about geography, history and philosophy. Other travels took him southwest to Philadelphia and New York City in 1854 and west across the Great Lakes region in 1861, when he visited Niagara Falls, Detroit, Chicago, Milwaukee, St. Paul and Mackinac Island. He was provincial in his own travels, but he read widely about travel in other lands. He devoured all the first-hand travel accounts available in his day, at a time when the last unmapped regions of the earth were being explored. He read Magellan and James Cook; the arctic explorers John Franklin, Alexander Mackenzie and William Parry; David Livingstone and Richard Francis Burton on Africa; Lewis and Clark; and hundreds of lesser-known works by explorers and literate travelers. Astonishing amounts of reading fed his endless curiosity about the peoples, cultures, religions and natural history of the world and left its traces as commentaries in his voluminous journals. He processed everything he read, in the local laboratory of his Concord experience. Among his famous aphorisms is his advice to "live at home like a traveler".

After John Brown's raid on Harpers Ferry, many prominent voices in the abolitionist movement distanced themselves from Brown or damned him with faint praise. Thoreau was disgusted by this, and he composed a key speech, "A Plea for Captain John Brown", which was uncompromising in its defense of Brown and his actions. Thoreau's speech proved persuasive: the abolitionist movement began to accept Brown as a martyr, and by the time of the American Civil War entire armies of the North were literally singing Brown's praises. As a biographer of Brown put it, "If, as Alfred Kazin suggests, without John Brown there would have been no Civil War, we would add that without the Concord Transcendentalists, John Brown would have had little cultural impact."

Thoreau contracted tuberculosis in 1835 and suffered from it sporadically afterwards. In 1860, following a late-night excursion to count the rings of tree stumps during a rainstorm, he became ill with bronchitis. His health declined, with brief periods of remission, and he eventually became bedridden. Recognizing the terminal nature of his disease, Thoreau spent his last years revising and editing his unpublished works, particularly The Maine Woods and Excursions, and petitioning publishers to print revised editions of A Week and Walden. He wrote letters and journal entries until he became too weak to continue. His friends were alarmed at his diminished appearance and they were fascinated by his tranquil acceptance of death. When he was asked in his last weeks if he had made his peace with God, Thoreau responded, "I did not know we had ever quarreled."

Aware that he was dying, Thoreau's last words were "Now comes good sailing", followed by two lone words, "moose" and "Indian". He died on May 6, 1862, at the age of 44. Amos Bronson Alcott planned the service and read selections from Thoreau's works, and Channing presented a hymn. Emerson wrote the eulogy spoken at the funeral. Thoreau was buried in the Dunbar family plot; his remains and those of members of his immediate family were eventually moved to Sleepy Hollow Cemetery in Concord, Massachusetts.

Thoreau prepared "Life Without Principle" for publication during the final months of his life based on his journal notes between 1851 and 1855 that originally inspired his lecture. It was published posthumously in 1863 in The Atlantic Monthly. The ideas in this essay provide an overview of Thoreau's philosophy of work and life, challenging the notion that work is the most crucial aspect of an individual's life. He emphasizes the need for the act of doing the work itself, and doing it well, to be fulfilling for the laborer, and not merely something that is done in exchange for a wage or profit. He posits also that spending your life working purely for these reasons is a waste of one's time and, thus, life.

During this same middle passage of "Life Without Principle" Thoreau connects how market forces and capital trade influence a system that does not encourage or promote skill or experience in the work being done, rather quite the opposite. He gives example in the fact that, in his own work as a surveyor, he is often asked by employers not to do the job skillfully or accurately but in a way that most benefits them. He addresses, also, a firewood hawker with whom he tried to share a new more accurate way of measuring a cord of wood who told him that the more accurately he measured the wood, the more business he would lose as clients similarly preferred less skill and accuracy in measuring as they thought that this might net them some advantage in the error."The ways by which you may get money almost without exception lead downward. To have done anything by which you earned money merely is to have been truly idle or worse. If the laborer gets no more than the wages which his employer pays him, he is cheated, he cheats himself. If you would get money as a writer or lecturer, you must be popular, which is to go down perpendicularly. Those services which the community will most readily pay for it is most disagreeable to render. You are paid for being something less than a man. The State does not commonly reward a genius any more wisely.

Even the poet-laureate would rather not have to celebrate the accidents of royalty. He must be bribed with a pipe of wine; and perhaps another poet is called away from his muse to gauge that very pipe. As for my own business, even that kind of surveying which I could do with most satisfaction my employers do not want. They would prefer that I should do my work coarsely and not too well, ay, not well enough. When I observe that there are different ways of surveying, my employer commonly asks which will give him the most land, not which is most correct. I once invented a rule for measuring cord-wood, and tried to introduce it in Boston; but the measurer there told me that the sellers did not wish to have their wood measured correctly,—that he was already too accurate for them, and therefore they commonly got their wood measured in Charlestown before crossing the bridge.

The aim of the laborer should be, not to get his living, to get "a good job," but to perform well a certain work; and, even in a pecuniary sense, it would be economy for a town to pay its laborers so well that they would not feel that they were working for low ends, as for a livelihood merely, but for scientific, or even moral ends. Do not hire a man who does your work for money, but him who does it for love of it.

It is remarkable that there are few men so well employed, so much to their minds, but that a little money or fame would commonly buy them off from their present pursuit. I see advertisements for active young men, as if activity were the whole of a young man's capital. Yet I have been surprised when one has with confidence proposed to me, a grown man, to embark in some enterprise of his, as if I had absolutely nothing to do, my life having been a complete failure hitherto. What a doubtful compliment this is to pay me! As if he had met me half-way across the ocean beating up against the wind, but bound nowhere, and proposed to me to go along with him! If I did, what do you think the underwriters would say? No, no! I am not without employment at this stage of the voyage. To tell the truth, I saw an advertisement for able-bodied seamen, when I was a boy, sauntering in my native port, and as soon as I came of age I embarked.""Life Without Principle" also touches on his ideas and final philosophical contributions to Welfarism, humanism, passive media consumption, economic materialism, and empirical naturalism.

Most of the luxuries and many of the so-called comforts of life are not only not indispensable, but positive hindrances to the elevation of mankind.

Similar to other Transcendentalists, Thoreau saw the natural world itself and one's presence in it as the answer to mankind's search for higher power. In the “Friday” chapter of A Week on the Concord and Merrimack Rivers, he posits, “Is not Nature, rightly read, that of which she is commonly taken to be the symbol merely?” Noting too in other journal entries that he was always intent “to be always on the alert to find God in nature”

In "Higher Laws," a central chapter of Walden, Thoreau outlines claims that human beings have a dual nature, part spiritual and part animal. Detailing that humanity is supposed to exercise and nourish the spiritual part, not the animal part.

Thoreau was an early advocate of recreational hiking and canoeing, of conserving natural resources on private land, and of preserving wilderness as public land. He was a highly skilled canoeist; Nathaniel Hawthorne, after a ride with him, noted that "Mr. Thoreau managed the boat so perfectly, either with two paddles or with one, that it seemed instinct with his own will, and to require no physical effort to guide it."

He was not a strict vegetarian, though he said he preferred that diet and advocated it as a means of self-improvement. He wrote in Walden, "The practical objection to animal food in my case was its uncleanness; and besides, when I had caught and cleaned and cooked and eaten my fish, they seemed not to have fed me essentially. It was insignificant and unnecessary, and cost more than it came to. A little bread or a few potatoes would have done as well, with less trouble and filth."

Thoreau was fervently against slavery and he actively supported the abolitionist movement. He participated as a conductor in the Underground Railroad, delivered lectures that attacked the Fugitive Slave Law, and in opposition to the popular opinion of the time, supported radical abolitionist militia leader John Brown and his party. Two weeks after the ill-fated raid on Harpers Ferry and in the weeks leading up to Brown's execution, Thoreau delivered a speech to the citizens of Concord, Massachusetts, in which he compared the American government to Pontius Pilate and likened Brown's execution to the crucifixion of Jesus Christ:

Some eighteen hundred years ago Christ was crucified; this morning, perchance, Captain Brown was hung. These are the two ends of a chain which is not without its links. He is not Old Brown any longer; he is an angel of light.

In "The Last Days of John Brown", Thoreau described the words and deeds of John Brown as noble and an example of heroism. In addition, he lamented the newspaper editors who dismissed Brown and his scheme as "crazy".

Thoreau was a proponent of limited government and individualism. Although he was hopeful that mankind could potentially have, through self-betterment, the kind of government which "governs not at all", he distanced himself from contemporary "no-government men" (anarchists), writing: "I ask for, not at once no government, but at once a better government."

Thoreau believed that the evolution from absolute monarchy to limited monarchy to democracy was "a progress toward true respect for the individual" and he theorized about further improvements "towards recognizing and organizing the rights of man". Echoing this belief, he went on to write: "There will never be a really free and enlightened State until the State comes to recognize the individual as a higher and independent power, from which all its power and authority are derived, and treats him accordingly."

Thoreau was influenced by Indian spiritual thought. In Walden, there are many overt references to the sacred texts of India. For example, in the first chapter ("Economy"), he writes: "How much more admirable the Bhagvat-geeta than all the ruins of the East!" American Philosophy: An Encyclopedia classes him as one of several figures who "took a more pantheist or pandeist approach by rejecting views of God as separate from the world", also a characteristic of Hinduism.

Furthermore, in "The Pond in Winter", he equates Walden Pond with the sacred Ganges river, writing:

In the morning I bathe my intellect in the stupendous and cosmogonal philosophy of the Bhagvat Geeta since whose composition years of the gods have elapsed, and in comparison with which our modern world and its literature seem puny and trivial; and I doubt if that philosophy is not to be referred to a previous state of existence, so remote is its sublimity from our conceptions. I lay down the book and go to my well for water, and lo! there I meet the servant of the Brahmin, priest of Brahma and Vishnu and Indra, who still sits in his temple on the Ganges reading the Vedas, or dwells at the root of a tree with his crust and water jug. I meet his servant come to draw water for his master, and our buckets as it were grate together in the same well. The pure Walden water is mingled with the sacred water of the Ganges.

Thoreau was aware his Ganges imagery could have been factual. He wrote about ice harvesting at Walden Pond. And he knew that New England's ice merchants were shipping ice to foreign ports, including Calcutta.

Additionally, Thoreau followed various Hindu customs, including a diet largely consisting of rice ("It was fit that I should live on rice, mainly, who loved so well the philosophy of India."), flute playing (reminiscent of the favorite musical pastime of Krishna), and yoga.

Thoreau read contemporary works in the new science of biology, including the works of Alexander von Humboldt, Charles Darwin, and Asa Gray (Charles Darwin's staunchest American ally). Thoreau was deeply influenced by Humboldt, especially his work Cosmos.

In 1859, Thoreau purchased and read Darwin's On the Origin of Species. Unlike many natural historians at the time, including Louis Agassiz who publicly opposed Darwinism in favor of a static view of nature, Thoreau was immediately enthusiastic about the theory of evolution by natural selection and endorsed it, stating:

The development theory implies a greater vital force in Nature, because it is more flexible and accommodating, and equivalent to a sort of constant new creation. (A quote from On the Origin of Species follows this sentence.)

While Henry David Thoreau was never formally diagnosed with autism spectrum disorder (ASD) or another related condition, some people in the autistic community strongly identify with Thoreau's lived experience, as described in his essays. It is speculated that Thoreau may have had ASD himself; Julie Brown, author of "Writers on the Spectrum: How Autism and Asperger's Syndrome Have Influenced Literary Writing", claims that Thoreau "demonstrated so many traits of Asperger's Syndrome (AS) that it seems very likely that he was affected by it". Brown specifically names Thoreau's social difficulties and his desire for solitude, his strict routines and his desire for sameness, his formation of his identity through his oppositional behavior, and his restrictive and intense interests, citing examples from Thoreau's essays.

For example, in Walden, Thoreau describes the (perceived) superiority of a simple diet and a limited wardrobe, as well as his construction of a rather spartan living space in the woods; Brown connects these traits to the repetitive, simple diets and clothing of other people with Asperger's Syndrome, and he asserts that the small size and limited decoration of Thoreau's living space was a sign of his desire for consistency and simplicity, which she asserts are "rooted in his place on the autism spectrum".

Thoreau's careful observations and devastating conclusions have rippled into time, becoming stronger as the weaknesses Thoreau noted have become more pronounced ... Events that seem to be completely unrelated to his stay at Walden Pond have been influenced by it, including the national park system, the British labor movement, the creation of India, the civil rights movement, the hippie revolution, the environmental movement, and the wilderness movement. Today, Thoreau's words are quoted with feeling by liberals, socialists, anarchists, libertarians, and conservatives alike.

Thoreau's political writings had little influence during his lifetime, as "his contemporaries did not see him as a theorist or as a radical", viewing him instead as a naturalist. They either dismissed or ignored his political essays, including "Civil Disobedience". The only two complete books (as opposed to essays) that were published in his lifetime, Walden and A Week on the Concord and Merrimack Rivers (1849), both dealt with Nature, in which he "loved to wander". His obituary was lumped in with others, rather than as a separate article, in an 1862 yearbook. Critics and the public continued either to disdain or to ignore Thoreau for years, but the publication of extracts from his journal in the 1880s by his friend H.G.O. Blake, and of a definitive set of Thoreau's works by the Riverside Press between 1893 and 1906, led to the rise of what literary historian F.L. Pattee called a "Thoreau cult".

Thoreau's writings went on to influence many public figures. Political leaders and reformers like Mohandas Gandhi, U.S. President John F. Kennedy, American civil rights activist Martin Luther King Jr., U.S. Supreme Court Justice William O. Douglas, and Russian author Leo Tolstoy all spoke of being strongly affected by Thoreau's work, particularly "Civil Disobedience", as did "right-wing theorist Frank Chodorov [who] devoted an entire issue of his monthly, Analysis, to an appreciation of Thoreau".

Thoreau also influenced many artists and authors including Edward Abbey, Willa Cather, Marcel Proust, William Butler Yeats, Sinclair Lewis, Ernest Hemingway, Upton Sinclair, E. B. White, Lewis Mumford, Frank Lloyd Wright, Alexander Posey, and Gustav Stickley. Thoreau also influenced naturalists like John Burroughs, John Muir, E. O. Wilson, Edwin Way Teale, Joseph Wood Krutch, B. F. Skinner, David Brower, and Loren Eiseley, who Publishers Weekly called "the modern Thoreau".

Thoreau's friend William Ellery Channing published his first biography, Thoreau the Poet-Naturalist, in 1873. English writer Henry Stephens Salt wrote a biography of Thoreau in 1890, which popularized Thoreau's ideas in Britain: George Bernard Shaw, Edward Carpenter, and Robert Blatchford were among those who became Thoreau enthusiasts as a result of Salt's advocacy.

Many of Thoreau's works were not published during his lifetime, including his journals and numerous unfinished manuscripts.

"Wendell Phillips Before the Concord Lyceum" (1845)

A Week on the Concord and Merrimack Rivers (1849)

"Resistance to Civil Government", or "Civil Disobedience"", or "On the Duty of Civil Disobedience"" (1849)

"Remarks After the Hanging of John Brown" (1859)