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Henry David Thoreau (July 12, 1817 – May 6, 1862; born David Henry Thoreau[1]) was an American author, naturalist, transcendentalist, tax resister, development critic, and philosopher who is best known for Walden, a reflection upon simple living in natural surroundings, and his essay, Civil Disobedience, an argument for individual resistance to civil government in moral opposition to an unjust state.

Thoreau’s books, articles, essays, journals, and poetry total over 20 volumes. Among his lasting contributions were his writings on natural history and philosophy, where he anticipated the methods and findings of ecology and environmental history, two sources of modern day environmentalism.

He 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 nonviolent resistance influenced the political thoughts and actions of such later figures as Leo Tolstoy, Mohandas K. Gandhi, and Martin Luther King, Jr.

Some anarchists claim Thoreau as an inspiration. Though Civil Disobedience calls for improving rather than abolishing government — “I ask for, not at once no government, but at once a better government”[2] — the direction of this improvement aims at anarchism: “‘That government is best which governs not at all;’ and when men are prepared for it, that will be the kind of government which they will have.”[2]

Early Years: 1817-1837

Thoreau was born in Concord, Massachusetts to John Thoreau and Cynthia Dunbar. His paternal grandfather was of French origin and born in Jersey.[3] His maternal grandfather, Asa Dunbar, was known for leading Harvard's 1766 student "Bread and Butter Rebellion"[4] the first recorded student protest in the United States.[5] David Henry was named after a recently deceased paternal uncle, David Thoreau. He did not become “Henry David” until after college, although he never petitioned to make a legal name change.[6] He had two older siblings, Helen and John Jr., and a younger sister, Sophia.[7] Thoreau’s birthplace still exists on Virginia Road in Concord and is currently the focus of preservation efforts. The house is original, but it now stands about 100 yards away from its first site.

Bronson Alcott and Thoreau's aunt both wrote that “Thoreau” is pronounced like the word “thorough”, whose standard American pronunciation rhymes with “furrow”.[8] In appearance he was homely, with a nose that he called “my most prominent feature”[9]. Of his face, Nathaniel Hawthorne wrote: “[Thoreau] is as ugly as sin, long-nosed, queer-mouthed, and with uncouth and rustic, though courteous manners, corresponding very well with such an exterior. But his ugliness is of an honest and agreeable fashion, and becomes him much better than beauty.”[10]

Thoreau studied at Harvard between 1833 and 1837. He lived in Hollis Hall and took courses in rhetoric, classics, philosophy, mathematics, and science. Legend states that Thoreau refused to pay the five-dollar fee for a Harvard diploma. In fact, the master's degree he declined to purchase had no academic merit: 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” [11] His comment was: “Let every sheep keep its own skin.”
 

Returning to Concord: 1837-1841

During a leave of absence from Harvard in 1835, Thoreau taught school in Canton, Massachusetts. After graduating in 1837, he joined the faculty of Concord Academy, but he refused to administer corporal punishment and the school board soon dismissed him. He and his brother John then opened a grammar school in Concord in 1838. They introduced several progressive concepts, including nature walks and visits to local shops and businesses. The school ended when John became fatally ill from tetanus in 1841.[12] Upon graduation Thoreau returned home to Concord, where he befriended Ralph Waldo Emerson. Emerson took a paternal and at times patronizing 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, Nathaniel Hawthorne and his son Julian, who was a boy at the time. Of the many prominent authors who lived in Concord, Thoreau was the only town native. Emerson referred to him as the man of Concord.

Emerson constantly urged Thoreau to contribute essays and poems to a quarterly periodical, The Dial, and Emerson lobbied with editor Margaret Fuller to publish those writings. Thoreau’s first essay published there was Natural History of Massachusetts; half book review, half natural history essay, it appeared in 1842. It consisted of revised passages from his journal, which he had begun keeping at Emerson’s suggestion. The first entry on October 22, 1837 reads, “‘What are you doing now?’ he asked. ‘Do you keep a journal?’ So I make my first entry today.”

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).

From 1841-1844, Thoreau joined the Emerson household to serve as the children’s tutor, editorial assistant, and repair man/gardener. For a few months in 1843, he moved to the home of William Emerson on Staten Island, tutoring the family sons while writing for New York periodicals, aided in part by his future literary representative Horace Greeley.

Thoreau returned to Concord and worked in his family's pencil factory, which he would continue to do for most of his adult life. He rediscovered the process to make a good pencil out of inferior graphite by using clay as the binder; this invention improved upon graphite found in New Hampshire in 1821 by Charles Dunbar. (The process of mixing graphite and clay, known as the Conté process, was patented by Nicolas-Jacques Conté in 1795.) Later, Thoreau converted the factory to produce plumbago (graphite), used to ink typesetting machines.[13] Frequent contact with minute particles of graphite may have weakened his lungs already damaged by TB.[citation needed]

Once back in Concord, Thoreau went through a restless period. In April 1844 he and his friend Edward Hoar accidentally set a fire that consumed 300 acres of Walden Woods[14]. He spoke often of finding a farm to buy or lease, which he felt would give him a means to support himself while also providing enough solitude to write his first book.

Civil Disobedience and the Walden Years: 1845–1849

Thoreau embarked on a two-year experiment in simple living on July 4, 1845, when he moved to a small self-built house on land owned by Emerson in a second-growth forest around the shores of Walden Pond. The house was not in wilderness but at the edge of town, 1.5 miles (2.4 km) from his family home.

On July 24 or 25th, 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, over his protests, when his aunt paid his taxes.) [15] The experience had a strong impact on Thoreau. In January and February of 1848, he delivered lectures on "The Rights and Duties of the Individual in relation to Government”[16] explaining his tax resistance at the Concord Lyceum. Bronson Alcott attended the lecture, and wrote in his journal on January 26th

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.[17]

Thoreau revised the lecture into an essay entitled Resistance to Civil Government (also known as Civil Disobedience). In May 1849 it was published by Elizabeth Peabody in the Aesthetic Papers.

At Walden Pond, he completed a first draft of A Week on the Concord and Merrimack Rivers, an elegy to his brother, John, that described their 1839 trip to the White Mountains. Thoreau did not find a publisher for this book, and Emerson urged Thoreau to publish at his own expense. Thoreau did so with Munroe, Emerson’s own publisher, who did little to publicize the book, which failed entirely to sell. Its failure put Thoreau into debt that took years to pay off, and Emerson’s flawed advice caused a schism between the friends that never entirely healed.

In August of 1846, Thoreau briefly left Walden to make a trip to Mount Katahdin in Maine, a journey later recorded in “Ktaadn,” the first part of The Maine Woods.

Thoreau left Walden Pond on September 6, 1847. Over several years, he worked to pay off his debts and also continuously revised his manuscript. In 1854, he published Walden, or Life in the Woods, recounting the two years, two months, and two days he had spent at Walden Pond. The book compresses that time into a single calendar year, using the passage of four seasons to symbolize human development. Part memoir and part spiritual quest, Walden at first won few admirers, but today critics regard it as a classic American book that explores natural simplicity, harmony, and beauty as models for just social and cultural conditions.

n 1851, Thoreau became increasingly fascinated with natural history and travel/expedition narratives. He read avidly on botany and often wrote observations on this topic into his Journal. He greatly 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 words.

He became a land surveyor, and continued to write increasingly detailed natural history observations about the 26 mile² (67 km²) township in his Journal, a two-million word document he kept for 24 years. He also kept a series of separate notebooks, and these observations became the source for Thoreau's late natural history writings, such as Autumnal Tints, The Succession of Trees, and Wild Apples, an essay bemoaning the destruction of indigenous and wild apple species.

Until the 1970s, Thoreau’s late pursuits were dismissed by literary critics as amateur science and declined philosophy. With the rise of environmental history and ecocriticism, several new readings of this matter began to emerge, showing Thoreau to be both a philosopher and an analyst of ecological patterns in fields and woodlots. For instance, his late essay, "The Succession of Forest Trees," shows that he used experimentation and analysis to explain how forests regenerate after fire or human destruction, through dispersal by seed-bearing winds or animals.

He was an early advocate of recreational hiking and canoeing, of conserving natural resources on private land, and of preserving wilderness as public land. Thoreau was also one of the first American supporters of Darwin's theory of evolution. Although not a strict vegetarian, Thoreau ate relatively little meat and advocated vegetarianism as a means of self-improvement.

Thoreau neither rejected civilization nor fully embraced wilderness. Instead he sought a middle ground, the pastoral realm that integrates both nature and culture. The wildness he enjoyed was the nearby swamp or forest, and he preferred “partially cultivated country.” His idea of being “far in the recesses of the wilderness” of Maine was to “travel the logger’s path and the Indian trail,” but he also hiked on pristine untouched land. In the essay "Henry David Thoreau, Philosopher" Roderick Nash writes: "Thoreau left Concord in 1846 for the first of three trips to northern Maine. His expectations were high because he hoped to find genuine, primeval America. But contact with real wilderness in Maine affected him far differently than had the idea of wilderness in Concord. Instead of coming out of the woods with a deepened appreciation of the wilds, Thoreau felt a greater respect for civilization and realized the necessity of balance."[18]

He traveled to Quebec 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, visiting Niagara Falls, Detroit, Chicago, Milwaukee, St. Paul and Mackinac Island.[19]
 

Final Years: 1859-1862

After John Brown’s raid at 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 composed a speech — A Plea for Captain John Brown — which was uncompromising in its defense of Brown and his actions. Thoreau’s speech proved persuasive: first the abolitionist movement began to accept Brown as a martyr, and by the time of the American Civil War entire armies of the North would literally be singing Brown’s praises. As a contemporary biographer of John 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.”[20]

Thoreau first contracted tuberculosis in 1835 and suffered from it sporadically over his life. In 1859, following a late night excursion to count the rings of tree stumps during a rain storm, he became ill with bronchitis. His health declined over three years with brief periods of remission, until he eventually became bedridden. Recognizing the terminal nature of his disease, Thoreau spent his last years revising and editing his unpublished works, particularly Excursions and The Maine Woods and petitioning publishers to print revised editions of A Week and Walden. He also wrote letters and journal entries until he became too weak to continue. His friends were alarmed at his diminished appearance and fascinated by his tranquil acceptance of death. When his aunt Louisa asked him in his last weeks if he had made his peace with God, Thoreau responded quite simply: “I did not know we had ever quarreled.” He died on May 6, 1862 at the age of 44.

Originally buried in the Dunbar family plot, he and members of his immediate family were eventually moved to Sleepy Hollow Cemetery in Concord, Massachusetts. Emerson wrote the eulogy spoken at his funeral. Thoreau’s best friend Ellery Channing published his first biography, Thoreau the Poet-Naturalist, in 1873, and Channing and another friend Harrison Blake edited some poems, essays, and journal entries for posthumous publication in the 1890s. Thoreau’s Journal, often mined but largely unpublished at his death, first appeared in 1906 and helped to build his modern reputation. A new and greatly expanded edition of the Journal is underway, published by Princeton University Press. Today, Thoreau is regarded as one of the foremost American writers, both for the modern clarity of his prose style and the prescience of his views on nature and politics. His memory is honored by the international Thoreau Society, the oldest and largest society devoted to an American author.[citation needed]

Harrison Blake

Thoreau first received a letter from Harrison Blake, an ex-minister (Unitarian) widower of Worcester, Massachusetts, in March of 1848. Thus began a correspondence which lasted at least until May 3, 1861. Only Blake's first letter remains, but forty-nine of Thoreau's replies have been recovered. Harrison Blake, a year older than Thoreau, heard of Thoreau's experiment at Walden only six months after Thoreau had returned, but still six years before the book Walden was to be published. And while Thoreau was not yet widely recognized for his philosophical outlook, initiating a discourse with the author was strictly for that reason. Blake's first letter makes it clear that he seeks a spiritual mentor, and Thoreau's replies reveal that he was eager to fill the role. After the death of Sophia Thoreau, Harrison Blake inherited Thoreau's papers, and Blake was the first to publish extracts from the Journal.[citation needed]

Influence

Thoreau’s writings had far reaching influences on many public figures. Political leaders and reformers like Mahatma Gandhi, President John F. Kennedy, Civil rights activist Martin Luther King, Jr., Supreme Court Justice William O. Douglas, Russian author Leo Tolstoy and voyager Christopher McCandless. all spoke of being strongly affected by Thoreau’s work, particularly Civil Disobedience. So did many artists and authors including Edward Abbey, Willa Cather, Marcel Proust, William Butler Yeats, Sinclair Lewis, Ernest Hemingway, E. B. White and Frank Lloyd Wright and naturalists like John Burroughs, John Muir, E.O. Wilson, Edwin Way Teale, Joseph Wood Krutch , B.F Skinner, and David Brower.[21] Anarchist and feminist Emma Goldman also appreciated Thoreau, and referred to him as “the greatest American anarchist”.

Mahatma Gandhi first read Walden in 1906 while working as a civil rights activist in Johannesburg, South Africa. He told American reporter Webb Miller, "[Thoreau's] ideas influenced me greatly. I adopted some of them and recommended the study of Thoreau to all of my friends who were helping me in the cause of Indian Independence. Why I actually took the name of my movement from Thoreau's essay 'On the Duty of Civil Disobedience,' written about 80 years ago."[22]

Martin Luther King, Jr noted in his Autobiography that his first encounter with the idea of non-violent resistance was reading "On Civil Disobedience" in 1944 while attending Morehouse College. He wrote in his autobiography that it was

Here, in this courageous New Englander's refusal to pay his taxes and his choice of jail rather than support a war that would spread slavery's territory into Mexico, I made my first contact with the theory of nonviolent resistance. Fascinated by the idea of refusing to cooperate with an evil system, I was so deeply moved that I reread the work several times.

I became convinced that noncooperation with evil is as much a moral obligation as is cooperation with good. No other person has been more eloquent and passionate in getting this idea across than Henry David Thoreau. As a result of his writings and personal witness, we are the heirs of a legacy of creative protest. The teachings of Thoreau came alive in our civil rights movement; indeed, they are more alive than ever before. Whether expressed in a sit-in at lunch counters, a freedom ride into Mississippi, a peaceful protest in Albany, Georgia, a bus boycott in Montgomery, Alabama, these are outgrowths of Thoreau's insistence that evil must be resisted and that no moral man can patiently adjust to injustice.[23]

The University of Michigan's New England Literature Program is an experiential literature and writing program run through UM's Department of English Language and Literature which was started in the 1970's by professors Alan Howes and Walter Clark. Howes and Clark called upon Thoreauvian ideals of nature, independence and community to create an academic program modeled after Thoreau's experiment at Walden Pond. Today, students at NELP study Thoreau's work--as well as that of several other New England writers from the 19th and 20th centuries--in relative isolation on Sebago Lake in Raymond, Maine.

American Psychologist B. F. Skinner wrote that he carried a copy of Thoreau's Walden with him in his youth [24] and, in 1945, wrote Walden Two, a fictional utopia about 1,000 members of a community living together inspired by the life of Thoreau.[25]

Criticisms

Thoreau was not without his critics. Scottish author Robert Louis Stevenson judged Thoreau’s endorsement of living alone in natural simplicity, apart from modern society, to be a mark of effeminacy:

…Thoreau’s content and ecstasy in living was, we may say, like a plant that he had watered and tended with womanish solicitude; for there is apt to be something unmanly, something almost dastardly, in a life that does not move with dash and freedom, and that fears the bracing contact of the world. In one word, Thoreau was a skulker. He did not wish virtue to go out of him among his fellow-men, but slunk into a corner to hoard it for himself. He left all for the sake of certain virtuous self-indulgences.[26]

However, English novelist George Eliot, writing in the Westminster Review, characterized such critics as uninspired and narrow-minded:

People—very wise in their own eyes—who would have every man’s life ordered according to a particular pattern, and who are intolerant of every existence the utility of which is not palpable to them, may pooh-pooh Mr. Thoreau and this episode in his history, as unpractical and dreamy.[citation needed]

Throughout the 19th century, Thoreau was dismissed as a cranky provincial, hostile to material progress. In a later era, Thoreau is often cited as a progenitor of modern social movements such as environmentalism and vegetarianism.

Thoreau’s works

This list is incomplete; you can help by expanding it.

* The Service (1840)
* A Walk to Wachusett (1842)
* Paradise (to be) Regained (1843)
* The Landlord (1843) [3]
* Sir Walter Raleigh (1844)
* Herald of Freedom (1844)
* Wendell Phillips Before the Concord Lyceum (1845)
* Reform and the Reformers (1846-8)
* Thomas Carlyle and His Works (1847)
* A Week on the Concord and Merrimack Rivers (1849) [4]
* Resistance to Civil Government, or Civil Disobedience (1849)
* An Excursion to Canada (1853) [5]
* Slavery in Massachusetts (1854)
* Walden (1854)
* A Plea for Captain John Brown (1859)
* Remarks After the Hanging of John Brown (1859)
* The Last Days of John Brown (1860)
* Walking (1861) [6][7]
* Autumnal Tints (1862) [8]
* Wild Apples: The History of the Apple Tree (1862) [9][10]
* Excursions (1863)
* Life Without Principle (1863)
* Night and Moonlight (1863) [11]
* The Highland Light (1864) [12]
* The Maine Woods (1864) [13]
* Cape Cod (1865) [14]
* Letters to Various Persons (1865)
* A Yankee in Canada, with Anti-Slavery and Reform Papers (1866)
* Early Spring in Massachusetts (1881)
* Summer (1884)
* Winter (1888)
* Autumn (1892)
* Misellanies (1894)
* Familiar Letters of Henry David Thoreau (1894)
* Poems of Nature (1895)
* Some Unpublished Letters of Henry D. and Sophia E. Thoreau (1898)
* The First and Last Journeys of Thoreau (1905)
* Journal of Henry David Thoreau (1906)[15]

* The Thoreau Reader. The annotated works of Henry David Thoreau.
* Thoreau's Life & Writings, at the Thoreau Institute at Walden Woods.
* Works by Henry David Thoreau at Project Gutenberg. Text and HTML.
* Works by Henry David Thoreau at Internet Archive. Scanned books.
* Works by Henry David Thoreau at Google Books. Scanned books.
* Thoreau's Journal Drippings; a Monthly Digest of Excerpts from Thoreau's Journal
* Excerpts from Thoreau’s Journals (relating to political philosophy)
* Poems of Thoreau

* The Writings of Henry D. Thoreau, a project that aims to provide accurate texts of Thoreau's works
* Concord Museum, which contains many of Thoreau's possessions
* The Night Thoreau Spent in Jail, a two-act play by Robert Edwin Lee and Jerome Lawrence.

1. ^ Biography of Henry David Thoreau, American Poems (2000-2007 Gunnar Bengtsson).
2. ^ a b Thoreau, H.D. Resistance to Civil Government
3. ^ RootsWeb WorldConnect Project: Ancestors of Mary Ann Gillam and Stephen Old
4. ^ History of the Fraternity System: [1]
5. ^ Trivia-Library: [2]
6. ^ Henry David Thoreau, Meet the Writers, Barnes & Noble.com (1997-2007 Barnesandnoble.com llc).
7. ^ Biography of Henry David Thoreau, American Poems (2000-2007 Gunnar Bengtsson).
8. ^ Thoreau Reader: THUR-oh or Thor-OH? And How Do We Know?
9. ^ Thoreau, H.D. Cape Cod
10. ^ Hawthorne, Nathaniel American Notebooks
11. ^ Thoreau's Diploma". American Literature Vol. 17, May 1945. 174-175.
12. ^ Dean, Bradley P. "A Thoreau Chronology".
13. ^ Conrad, Randall “The Machine in the Wetland: Re-imagining Thoreau's Plumbago-Grinder” Thoreau Society Bulletin Fall 2005
14. ^ A Chronology of Thoreau's Life, with Events of the Times, The Thoreau Project, Calliope Film Resources, accessed 11th June 2007
15. ^ Rosenwald, Lawrence. "The Theory, Practice & Influence of Thoreau's Civil Disobedience". William Cain, ed. A Historical Guide to Henry David Thoreau..Cambridge: Oxford University Press, 2006.
16. ^ Thoreau, H.D. letter to Ralph Waldo Emerson 23 February 1848
17. ^ Alcott, Bronson. Journals. Boston: Little, Brown, 1938.
18. ^ http://www.wsu.edu/~hughesc/thoreau.htm"Henry David Thoreau, Philosopher" by Roderick Nash
19. ^ Henry David Thoreau, The Annotated Walden (1970), Philip Van Doren Stern, ed., pp. 96, 132
20. ^ Reynolds, David S. John Brown, Abolitionist Knopf (2005), p. 4
21. ^ Kifer, Ken Analysis and Notes on Walden: Henry Thoreau’s Text with Adjacent Thoreauvian Commentary
22. ^ Miller, Webb. I Found No Peace. Garden City, 1938. 238-239
23. ^ King, M.L. Autobiography of Martin Luther King, Jr. chapter two
24. ^ Skinner, B. F. A Matter of Consequences
25. ^ Skinner, B. F. Walden Two (1948)
26. ^ Stevenson, Robert Louis. "Henry David Thoreau: His Character and Opinions". Cornhill Magazine. June 1880.

Further reading

* Henry David Thoreau: A Week, Walden, The Maine Woods, Cape Cod (Robert F. Sayre, ed.) (Library of America, 1985) ISBN 978-0-94045027-1
* Henry David Thoreau: Collected Essays and Poems (Elizabeth Hall Witherell, ed.) (Library of America, 2001) ISBN 978-1-88301195-6
* Henry David Thoreau: The Price of Freedom: Excerpts from Thoreau’s Journals ISBN 978-1434805522
* Bode, Carl. Best of Thoreau's Journals. Southern Illinois University Press. 1967.
* Botkin, Daniel. No Man's Garden.
* Dassow Walls, Laura. Seeing New Worlds: Henry David Thoreau and 19th Century Science. University of Wisconsin Press. 1995. ISBN 978-0-29914740-2
* Dean, Bradley P. ed., Letters to a Spiritual Seeker. New York: W. W. Norton & Company, 2004.
* Harding, Walter. The Days of Henry Thoreau. Princeton University Press, 1982.
* Hendrix, George. "The Influence of Thoreau's "Civil Disobedience" on Gandhi's Satyagraha". The New England Quarterly. 1956.
* Howarth, William. The Book of Concord: Thoreau's Life as a Writer. Viking Press, 1982.
* Meyerson, Joel et al. The Cambridge Companion to Henry David Thoreau. Cambridge University Press. 1995.
* Nash, Roderick. Henry David Thoreau, Philosopher.
* Parrington, Vernon. Main Current in American Thought. V 2 online. 1927.
* Petroski, Henry. H. D. Thoreau, Engineer. American Heritage of Invention and Technology, Vol. 5, No. 2, pp. 8-16.

 


 

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