Source: Reengineering the Corporation, 1993, p. 32
Quotes about improvement
page 4

As quoted in "Galtieri bars peace if Britain restores its 'colonial rule'" http://www.nytimes.com/1982/06/16/world/galtieri-bars-peace-if-britain-restores-its-colonial-rule.html, The New York Times (June 16, 1982)

Source: Books, What's So Great About America (2003), Ch. 6: America the Beautiful

Presidential campaign (April 12, 2015 – 2016), Democratic Presidential Debate in Miami (March 9, 2016)

1980s and later, Knowledge, Evolution and Society (1983), "Coping with Ignorance"
Source: http://imprimis.hillsdale.edu/coping-with-ignorance/
As quoted in Abstract Art, Anna Moszynska, Thames and Hudson 1990, p. 206
quote after 1959, in Andre's early artistic career, when he made his sculpture 'Last Ladder'

“Youth is the time of getting, middle age of improving, and old age of spending.”
3.
Meditations Divine and Moral (1664)

Letter to George Richard Minot (May 27, 1789); reported in Works of Fisher Ames (1854), ed. Seth Ames, vol. 1, p. 45.

Book 3, Chapter 1 “General O. T. Shaw” (p. 92)
Oswald Bastable, The Warlord of the Air (1971)

"Interview with Billy Simmonds: Vegan Body Builder" https://web.archive.org/web/20160201195350/http://www.vivalavegan.net/articles/467-interview-with-billy-simmonds-vegan-body-builder.html, Viva La Vegan! (2016).

Counterterrorism and Cybersecurity: Total Information Awareness (2nd Edition), 2015

Statement at the Democratic National Convention, as quoted in Best Quotes of '54, '55, '56 (1957) edited by James Beasley Simpson, p. 58; later published in The New America (1957), p. 7

13 August 2009, "Obama and the Post Office" http://www.lewrockwell.com/rockwell/obama-postoffice126.html
2000s

Source: The Story of My Life (1932), Ch. 26 "The Aftermath Of The War"
[He goes on to cite the example of Sir William Johnson's work with the Mohawks as Indian Superintendent, and to explain further what he means by "civilization"- in particular, encouraging the use of agriculture instead of hunting].
"A View of the Causes and Consequences of the American Revolution" (London, Robinson, 1797)

p, 125
Reflections on the Motive Power of Heat (1824)

United Nations General Assembly - Promotion of a democratic and equitable international order http://www.ohchr.org/Documents/Issues/IntOrder/A-68-284_en.pdf.
2013
C. West Churchman, Challenge to Reason (1968), p. 2; cited in '" C. West Churchman — 75 years" by Werner Ulrich, in Systems Practice (December 1988), Volume 1, Issue 4, p. 341-350
1960s - 1970s

In the Puppet Theatre: Dark mirrors, Hidden Angels and an Algorithmic Prayer-Wheel (p. 99)
The Soul of the Marionette: A Short Enquiry into Human Freedom (2015)

Source: The Expanding Circle: Ethics, Evolution, and Moral Progress (1981), Chapter 4, Reason, p. 120

Source: Words of a Sage : Selected thoughts of African Spir (1937), p. 61.

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 547.

Ser un joven comunista, por Karol Cariola, La Jota de Ingenieria, November 2011, 2013-10-03 http://www.jotainjenieria.cl/ser-un-joven-comunista-por-karol-cariola, Ser un joven comunista, por Karol Cariola, Oceansur.com, November 2011, 2013-10-03 http://www.oceansur.com/media/uploads/documents/files/prologo-karol.pdf,
Original: La educación en Chile ha sido modelada como un “bien de consumo”, hecho que fue aceptado por un amplio sector de la sociedad, con mucha resignación durante años, ellos creyeron que la Educación y la Salud debían ser tratados como cualquier otro tema.... Por esto no podemos dejar de reconocer el gran acierto del movimiento estudiantil al intervenir en las conciencias de miles de chilenos que hoy , ya no se conforman con la realidad del actual modelo de educación, que le hace sentido el cambio de esta añeja constitución, que entendieron necesaria una reforma tributaria, que ya no aguantan la sobre explotación de nuestros recursos naturales en beneficio de capitales extranjeros, es decir, Chile despertó y volvió a creer en la posibilidad de construir un país distinto, un país más justo, un país donde la educación y la salud estén garantizadas, un país donde los trabajadores tengan condiciones laborales dignas, donde los jóvenes no sean explotados ni mal tratados en su fuente laboral, donde las mujeres sean integradas con igualdad de derechos y oportunidades, un país donde se proteja el medio ambiente, en que los recursos naturales sean explotados para mejorar las condiciones de su pueblo, un país donde la cultura se desarrolle libremente, un país en el que haya acceso a la literatura, un país donde los niños no sufran la discriminación desde que nacen por no tener dinero, un país donde caminar por las calles no sean un temor constante de ser asaltados, un país donde los jóvenes más desposeídos no tengan que recurrir a las drogas y la delincuencia para dar sentido a sus vidas, un país donde los abuelos no se sientan un estorbo, un país donde el desarrollo del conocimiento sea una tarea de la sociedad en su conjunto, un país donde el avance de la ciencia se ponga al servicio del pueblo, ese hermoso país es el que hoy estamos volviendo a soñar, porque con emoción lo vuelvo a mencionar, Chile está cambiando, hoy no somos los mismos que hace un año atrás, las esperanzas han resurgido a pesar del esmero de aquellos que propician la ideología neoliberal y que pretenden eternizar el capitalismo en un proceso de auto reproducción permanente, excluyendo toda posibilidad de una revolución social.

Go Open Source puts R3m into building Linux channel, Tectonic staff, Tectonic, South Africa, 2006-01-30, 2011-09-11 http://www.tectonic.co.za/?p=840,

The Lessons of History (1968), p. 72 (co-authored with Ariel Durant)

Interview http://www.pga.com/pgachampionship/2003/news_interviews_081603_woodsqa.html (14 August 2003)

“Liberal hopefulness
Regards death as a mere border to an improving picture.”
"Ignorance of Death", line 11; cited from John Haffenden (ed.) The Complete Poems (London: Allen Lane, 2000) p. 78.
The Complete Poems

Source: The Geological Evidences of the Antiquity of Man (1863), Ch.20, p. 390-391

Source: A spiral model of software development and enhancement. (1988), p. 61

That bacon tray is always at the end of the buffet, you always regret all the stuff on your plate. "What am I doing with all this worthless fruit? I should have waited! If I had known you were here I would've waited...."
King Baby

Freedom from Want radio talk, July 10, 1942 (the fifth of "The Forgotten People" series)
Wilderness Years (1941-1949)
Source: http://menziesvirtualmuseum.org.au/transcripts/the-forgotten-people/63-chapter-5-freedom-from-want

Entrepreneur: "From Oprah Winfrey to Tim Cook, Leaders Offer Gems of Wisdom to the Class of 2018" https://www.entrepreneur.com/slideshow/313917 (24 May 2018)

2002-09-08
Its' a Good Time for War
Boston Globe
http://www.boston.com/news/packages/sept11/anniversary/globe_stories/090802_hitchens_2.htm: On the U.S. invasion of Afghanistan
2000s, 2002
Source: Quality Control: Principles, Practice, and Administration. 1951, p. 1

Source: Leading Change, 1996, p. 61; cited in: Joop Remme et al. Leadership, Change and Responsibility. 2013, p. 135

Lim Guan Eng (2018) cited in " Govt not just in cost-cutting mode, says Lim https://www.thestar.com.my/news/nation/2018/10/10/govt-not-just-in-costcutting-mode-says-lim/" on The Star Online, 10 October 2018

Source: Arabella and the Battle of Venus (2017), Chapter 3, “Seeking Passage” (p. 46)

"The Free Software Movement and the GNU/Linux Operating System", address at LinuxTag (July 2000)
2000s
Source: Object-oriented design: a responsibility-driven approach (1989), p. 71
“You are a reflection of nature. You should always be upgrading, refining, and improving.”
Source: Life, the Truth, and Being Free (2010), p. 116

1 July, 2012. http://www.middle-east-online.com/english/?id=53148

Above two in Violence is not the hallmark of the Congress, 6 December 2013, Rediff.com http://www.rediff.com/news/2001/feb/20inter.htm,
We all are one, whichever religion we belong to

2000s, The Real Abraham Lincoln: A Debate (2002), Rebuttal

How Plants are Trained to Work for Man (1921) Vol. 1 Plant Breeding

On the Agriculture of England (1840)

"The Superiority of Dinosaurs", Discovery 3(2),(1968) 11–22
The Superiority of Dinosaurs (1968)

p, 125
"On the Harmony of Theory and Practice in Mechanics" (Jan. 3, 1856)

Katniss and Buttercup (p. 386)
The Hunger Games trilogy, Mockingjay (2010)
Source: On Writing Well (Fifth Edition, orig. pub. 1976), Chapter 3, Clutter, p. 13

In re Hallett's Estate (1880) 13 Ch.D. 696, 710.

1850s, Latter-Day Pamphlets (1850), Stump Orator (May 1, 1850)
John E. Chubb, and Terry M. Moe (1990). Politics, markets, and America's schools. Brookings Institution Press; Book abstract

translation from original Dutch: Fons Heijnsbroek
(original Dutch: citaat van Willem Roelofs, in het Nederlands:) ..groote moeite kost het [me om] bij het maken van een schilderij naar een studie, deze werkelijk goed te volgen. Men is maar al te zeer geneigd, er iets anders, zoogenaamd iets beters, van te maken, en daardoor geraakt men meestal juist van de wijs. Een goede buiten-studie heeft een adem der natuur in zich, dien men niet mag verwaarloozen of vernietigen. Men moet uit zo'n studie alles halen, wat er in zit en niet een derde of de helft. Kan men waarlijk het een of ander verbeteren, a la bonheur, maar anders is het raadzaam, de studie gehoorzaam te volgen als gids.
Quote of Roelofs; recorded and cited by his student nl:Frans Smissaert in 1891, as quoted in Zó Hollands - Het Hollandse landschap in de Nederlandse kunst sinds 1850, Antoon Erftemeijer https://www.franshalsmuseum.nl/wp-content/uploads/2017/12/zohollands_eindversie_def_1.pdf; Frans Hals museum | De Hallen, Haarlem 2011, p. 16
undated quotes

Source: Why We Fail as Christians (1919), p. 72-73

Speech in Birmingham (27 October 1858), quoted in G. M. Trevelyan, The Life of John Bright (London: Constable, 1913), pp. 271-272.
1850s

Hints on Programming Language Design http://i.stanford.edu/pub/cstr/reports/cs/tr/73/403/CS-TR-73-403.pdf, December 1973.

Men versus the Man: A Correspondence between Robert Rives La Monte, Socialist, and H.L. Mencken, Individualist (1910), pg. 116
1910s
Spark (2014)

Source: 1930s, Game Management, 1933, Chapter XVI, "Game Economics and Esthetics", p. 391.

"How Should We Use Our Power: A Debate on Iraq" http://www.commonwealthclub.org/archive/03/03-01hitchensdanner-qa.html with Mark Danner at UC Berkeley (2003-01-28}: On the 2003 invasion of Iraq
2000s, 2003

from his Letters 263-264. circa 1801; in Goya, A life in Letters, edited and introduced by Sarah Simmons; translations by Philip Troutman, London, Pimlico, 2004
Early 1801 - Goya was then First Painter of the Court - the artist is sent to check the results of some restoration operated on works belonging to the Spanish crown. His 263-264 letters reveal the total opposition of Goya against any cleaning or restoration of older paintings
1800s

Wen Jiabao (2008) cited in: Transcript of interview with Chinese Premier Wen Jiabao, 28 September 2008, CNN http://edition.cnn.com/2008/WORLD/asiapcf/09/29/chinese.premier.transcript/index.html,

Source: How to Pay for the War (1940), Ch. 5 : A Plan for Deferred Pay, Family, Allowances and a Cheap Ration
The Naked Communist (1958)

Source: The Lives of the Painters, Sculptors, and Architects, 1900, p. 5-6

Closing words, p. 209-210
The 25-Year War: America's Military Role in Vietnam (1984)
2010s, 2018, Interview with Bill Kristol (2018)

In [Salant, Jonathan D., 11 ways Cory Booker is wooing progressives as he eyes a run for president in 2020, https://www.nj.com/politics/index.ssf/2018/08/11_ways_booker_is_wooing_progressives_in_advance_of_1.html, nj.com, 21 August 2018, August 19, 2018]
2018

“I shall set up National Economic Development Advisory Conference to improve the economy in Taiwan”
During the official speech of his first anniversary of presidency, May 19, 2001
Pet Phrases, 2001

Memorial service for George Washington held in South Farms, Connecticut, 22 February 1880. As quoted in [Strong, Barbara Nolen, The Morris Academy: Pioneer in Coeducation, Morris Bicentennial Committee, 1976, Torrington, 31, http://books.google.com/books?id=nrCYGQAACAAJ&dq]

1960s, Where Do We Go from Here: Chaos or Community? (1967)

Speech http://hansard.millbanksystems.com/commons/1989/jan/18/elimination-of-poverty-in-retirement in the House of Commons (18 January 1989).
1980s

The Education of Henry Adams (1907)

Memorial dedication (1902)
Cited in: D.H. Stamatis (1999) TQM Engineering Handbook, p. 12
Total Quality Control, 1983
Courage and alertness
Source: The Teachings of Babaji, 16 January 1983.
Source: Darwin, God and the Meaning of Life: How Evolutionary Theory Undermines Everything You Think You Know (2010), p. 173
2010s, North Korea's Race Problem (February 2010)

University of Minnesota Alumni Association (UMAA) Annual Meeting Keynote Speech (29 April 1992) UMAA 199204 to 199306 Meeting Minutes http://conservancy.umn.edu/bitstream/48842/1/199204-199306.pdf
Morgen Witzel (2003), Fifty Key Figures in Management. p. 39
Quote on the Cadbury company at the time Edward Cadbury was managing director

Question 12 in Less Wrong Q&A with Eliezer Yudkowsky (January 2010) http://lesswrong.com/lw/1lq/less_wrong_qa_with_eliezer_yudkowsky_video_answers/

Whilst composing Also Sprach Zarthustra, Strauss made this joke about the Bavaria weather to his friend, the conductor Max von Schillings. Quoted in Kurt Wilhelm, Richard Strauss - an intimate portrait, page 73.
Other sources