A Week on the Concord and Merrimack Rivers http://www.gutenberg.org/dirs/etext03/7cncd10.txt (1849), Sunday
Генри Дэвид Торо: Цитаты на английском языке (страница 18)
Генри Дэвид Торо было американский писатель, мыслитель, натуралист, общественный деятель. Цитаты на английском языке.“None are so old as those who have outlived enthusiasm.”
First attributed to Thoreau in A year of sunshine: cheerful extracts for every day in the year (Kate Sanborn, 1886) and American literature (Mildred Cabell Watkins, 1894), but there is no known citation to Thoreau's works.
Misattributed
"I am a parcel of vain strivings tied", st. 6 (1841)
A Week on the Concord and Merrimack Rivers http://www.gutenberg.org/dirs/etext03/7cncd10.txt (1849), Sunday
“He would have left a Greek accent slanting the wrong way, and righted up a falling man.”
A Plea for Captain John Brown (1859)
Attributed to Thoreau, in The Life You Were Born to Live : A Guide to Finding Your Life Purpose (1995) by Dan Millman, p. xi, and to Ralph Waldo Emerson in Promotion of Pharmaceuticals : Issues, Trends, Options (1993) by Dev S. Pathak, Alan Escovitz, and Suzan Kucukarslan, p. 74, but no occurrence of it prior to the 1990s has been located.
Disputed
A Week on the Concord and Merrimack Rivers http://www.gutenberg.org/dirs/etext03/7cncd10.txt (1849), Friday
Letter to Harrison Gray Otis Blake (6&7 December 1856), as published in The Correspondence of Henry David Thoreau (1958), p. 444; a line within this has been most quoted since 1865 in the form "I am ready to try this for the next ten thousand years, and exhaust it."