...in 1846, Henry David Thoreau left his cabin at Walden Pond for
 a brief walk into town and ended up in the Concord jail for refusing to
 pay his poll tax. A fervent abolitionist, Thoreau explained, "I cannot 
for an instant recognize . . . as my government [that] which is the slave's
 government also." The next morning, he learned that someone had paid 
the tax. He never knew who. Although Thoreau objected, the constable 
insisted on releasing him. This experience led him to write a powerful 
lecture on the "relation of the individual to the State." The lecture 
was published in 1849 as "Resistance to Civil Government," and is now 
known as "Civil Disobedience." This masterful essay has influenced 
generations of activists, including Mahatma Gandhi and Dr. Martin Luther
 King, Jr.
Henry David Thoreau was on an errand in town when he encountered Sam 
Staples, the Concord constable, tax collector, and jailer. Staples took 
the opportunity to ask Thoreau to pay his back taxes. The 
independent-minded, highly principled naturalist refused, and Staples 
politely escorted him to jail. 
"The best 
place for each is where he stands," Thoreau once wrote. When he found 
himself incarcerated, he took full advantage of the new experience. 
Fascinated, he "pumped" his cellmate for "the history of the various 
occupants of that room [and] found that even here there was a history 
and a gossip which never circulated beyond the walls of the jail." The 
next morning, his fellow-prisoner was sent "to work at haying in a 
neighboring field," while Thoreau was told he must leave the jail.
It
 was not the brevity of his stay that angered him but the interference 
with his act of conscience and the fuss it caused. For the past six 
years, he had refused to pay the poll tax (imposed on all males 20 to 70
 years old) to protest the institution of slavery. To his great 
annoyance during his short stay in jail, someone paid it for him. 
His
 mother and sisters were active in the Women's Anti-Slavery Society of 
Concord, founded in 1837, and he had long been involved in the 
anti-slavery movement, but he preferred to protest through individual 
action. His family sheltered a number of fugitive slaves, and he would 
escort them to the next safe house or to an out-of-the-way train 
station. He delivered powerful lectures against slavery. And he withheld
 his taxes.
As he later wrote in "Civil 
Disobedience," he believed "it is not a man's duty, as a matter of 
course, to devote himself to the eradication of any, even the most 
enormous wrong; he may still properly have other concerns to engage him;
 but it is his duty, at least, to wash his hands of it, and . . . not to
 give it practically his support." 
Henry 
David Thoreau always had "other concerns to engage him." Born in Concord
 on July 12, 1817, he attended school there, and except for short trips,
 primarily in New England, rarely left the town he described as "the 
most estimable place in all the world." After graduating from Harvard in
 1837, he taught school for three years and then joined his father at 
the family pencil factory.
Exceptionally practical 
and resourceful, Thoreau improved pencil lead by baking the graphite 
mixture into cylinders and invented a machine that drilled a hole in the
 wood so the lead cylinder could simply be slipped in. John Thoreau 
& Company pencils were considered the best on the market. But once 
Henry had mastered the problem, he moved on. Life, he declared, "is too 
valuable to put into lead-pencils."
Having never married, Henry 
Thoreau could choose not "to keep pace with his companions," and, 
indeed, he heeded "a different drummer." He kept his needs simple. Other
 than a rowboat and his books, he owned almost nothing. He boarded 
mostly with his family, and on several occasions, with the Emersons. 
When he ran out of money, he took a paid job until he was flush again. 
He could always find work as a surveyor, and he was a skilled carpenter.
 "He chose to be rich," wrote his friend 
Emerson, "by making his wants few and supplying them himself."
On
 July 4, 1845, Thoreau moved into the one-room cabin he had built on 
land Emerson owned on the shores of Walden Pond. "I went to the woods," 
he wrote, "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."
In
 the months that followed, he worked in his two-and-a-half-acre 
vegetable garden, rowed his boat, and observed the smallest details of 
nature around him. He read, walked, and wrote 
A Week on the Concord and Merrimack Rivers and the first of seven drafts of 
Walden.
 He received visitors often and was himself a frequent dinner guest at 
his parents' or friends' homes. Besides his one-night stay in jail, his 
time at Walden was interrupted by a trip north into the Maine forests.
Then
 two years, two months, and two days after he had moved to Walden, 
Thoreau "left the woods for as good a reason as I went there. Perhaps it
 seemed to me that I had several more lives to live, and could not spare
 any more time for that one."
Walden, or, Life in the Woods was published on August 9, 1854. Unlike his first book, 
A Week on the Concord and Merrimack Rivers, which sold poorly, sales of 
Walden
 were strong from the start. With the exception of a three-year period 
(1859-1862), the book has never been out of print. It has been 
translated into almost every language and has sold tens of millions of 
copies.
Henry David Thoreau was an original thinker and a 
gifted writer, who produced an extraordinary body of work — journals, 
essays, poetry, and books. He was also a magnificent naturalist. Taking a
 walk with him, Emerson remembered, was like walking with an 
encyclopedia. Thoreau recognized every animal track, every wildflower, 
and every bird call. He died of tuberculosis in 1862 at the age of 44 
and is buried on Authors' Ridge at Concord's Sleepy Hollow Cemetery.
Sources
  
   
The Cambridge Companion to Henry David Thoreau,ed. by Joel Myerson (Cambridge University Press, 1995).
   
Concord: Stories to Be Told, by Liz Nelson (Commonwealth Editions, 2002).
   
The Days of Henry Thoreau: A Biography, by Walter Harding (Princeton University Press, 1982).
   
The Writings of Henry David Thoreau with Biographical Sketch, by Ralph Waldo Emerson (Houghton