Source: On organizational learning (1999), p. 236; as cited in: Edward D. Garten, Delmus E. Williams (2008) Advances in Library Administration and Organization. p. 51
Quotes about motivation
page 7
Source: Organization and Management: Selected Papers (1948), p. 109-110; As cited in: Joseph T. Mahoney, " Chester Barnard http://organizationsandmarkets.files.wordpress.com/2009/09/mahoney-j-chester-barnard.pdf." 2009/09

Interview http://www.desiclub.com/desimusic/desimusic_features/music_article.cfm?id=202 (2006)
Sourced quotes

Interview with Jian Gomeshi, CBC Radio Q (16 February 2011) http://www.cbc.ca/video/#/Shows/QTV_on_bol...2/ID=1886977325/.

Broadcast (30 July 1950), quoted in The Times (31 July 1950), p. 4.
1950s

Eminent Historians: Their Technology, Their Line, Their Fraud

What the Future Holds (1984)

Source: The Archiving Society, 1961, p. 40; As cited in: Kevin Hindle, Kim Klyver (2011), Handbook of Research on New Venture Creation, p. 74-75

Source: The Modern Corporation and Private Property. 1932/1967, p. 2 (1967, p. 4)
"The Moral State of Tahiti—and of Darwin", p. 269
Eight Little Piggies (1993)

Given during a lecture at the Vienna Poetry Festival (1998)
God and religion
As quoted in Koch: Moore's propaganda film cheapens debate, polarizes nation, Ed, Koch, World Tribune, 29 June 2004 http://www.worldtribune.com/worldtribune/WTARC/2004/guest_koch_6_28.html,
2004

Source: "The Origins of Organizational Theory," 2005, p. 149-150
Source: Liberty Before Liberalism (1998), p. 104

“Profit doesn’t appear as the goal but as a side effect of pursuing motivating principles.”
Source: Doing Virtuous Business (Thomas Nelson, 2011), p. 3.

Brown : The Last Discovery of America (2003)

In another of his speeches on Indian tradition quoted in "Jayachamaraja Wodeyar – A Princely scholar".

Source: Christianizing the Social Order (1912), p. 104
Knowing Yourself: The True in the False (1996)
Conclusion in BBC's The Story of Maths, episode 4

"Le colline della Brianza e i suoi stupendi campanili sono la mia ispirazione" Umberto Pettinicchio https://www.ilgiorno.it/lecco/cronaca/locale/2010/01/31/287262-colline_della_brianza_suoi_stupendi_campanili_sono_ispirazione.shtml, Castenuovo, Lecco, January 31, 2010; Elvira Carella, ilgiorno.it.

Act II
Hedda Gabler (1890)

“I don't think I could stay interested for a couple of months in a character of mean motivation.”
Source: On usually playing likable characters, as quoted in "Gregory Peck, a Star of Quiet Dignity, Dies at 87" by William Grimes in The New York Times (13 June 2003)

1989 interview https://www.youtube.com/watch?v=9LYL1PTrtXo with James Dobson

Other writings, The Altruist in Politics (1889)

Speech at the 2016 Republican National Convention (July 19, 2016)
Property (1935)
Source: Organizational stress: Studies in role conflict and ambiguity, 1964, p. 16-17

“Values and justice”, Journal of Economic Methodology, Vol. 19, No. 2, June 2012, 101–108
2010s, “Values and Justice”, 2012

What they got was Napoleon. In 1776, the Americans were proclaiming "The Rights of Man"—and, led by political philosophers, they achieved it. No revolution, no matter how justified, and no movement, no matter how popular, has ever succeeded without a political philosophy to guide it, to set its direction and goal.
The Ayn Rand Column
Source: The Christian Agnostic (1965), p.286
“The role of the police as amplifiers of deviancy,” Images of Deviance (1971), p. 31
http://www.jwz.org/doc/markup.html
JWZ
Markup.
“Liberalism and its Discontents,” pp. 22-23.
Outside Ethics (2005)

Source: Shadows Linger (1984), Chapter 33, “Juniper: The Encounter” (p. 368)

Source: Fragments from Reimarus: Consisting of Brief Critical Remarks on the Object of Jesus and His Disciples as Seen in the New Testament, pp. 73–74

On the 2007 Nigerian Elections - "Selfless Service" http://www.modernghana.com/newsthread2/219944/1/ Modern Ghana (May 28 2009)

οὐ γὰρ ὡς ἀγγεῖον ὁ νοῦς ἀποπληρώσεως ἀλλ' ὑπεκκαύματος μόνον ὥσπερ ὕλη δεῖται ὁρμὴν ἐμποιοῦντος εὑρετικὴν καὶ ὄρεξιν ἐπὶ τὴν ἀλήθειαν. ὥσπερ οὖν εἴ τις ἐκ γειτόνων πυρὸς δεόμενος, εἶτα πολὺ καὶ λαμπρὸν εὑρὼν αὐτοῦ καταμένοι διὰ τέλους θαλπόμενος, οὕτως εἴ τις ἥκων λόγου μεταλαβεῖν πρὸς ἄλλον οὐχ οἴεται δεῖν φῶς οἰκεῖον ἐξάπτειν καὶ νοῦν ἴδιον, ἀλλὰ χαίρων τῇ ἀκροάσει κάθηται θελγόμενος, οἷον ἔρευθος ἕλκει καὶ γάνωμα τὴν δόξαν ἀπὸ τῶν λόγων, τὸν δ᾽ ἐντὸς: εὐρῶτα τῆς ψυχῆς καὶ ζόφον οὐκ ἐκτεθέρμαγκεν οὐδ᾽ ἐξέωκε διὰ φιλοσοφίας.
On Listening to Lectures, Plutarch, Moralia 48C (variously called De auditione Philosophorum or De Auditu or De Recta Audiendi Ratione)
Moralia, Others

Trump 101 The Way to Success https://books.google.com/books?id=uuR61zcvMTgC&pg=PA1&lpg=PA1&dq=%22since+I+LOVE+WHAT+I+DO,+I+DO+IT+VIGOROUSLY%22&source=bl&ots=ko6GrZPr-e&sig=x3zLQ1fWbNJIrx-7M0CzI-zPljg&hl=en&sa=X&ved=0ahUKEwjuncTq2OvRAhXCLMAKHTzHDNwQ6AEIGjAA#v=onepage&q=%22since%20I%20LOVE%20WHAT%20I%20DO%2C%20I%20DO%20IT%20VIGOROUSLY%22&f=false (2007), p. 1
2000s

On My Own Private Idaho, The Face, (1992)
Kantian Ethics (2008)
Source: Beyond Apollo (1972), Chapter 60
rather than of weaknesses of libertarian argument and evidence
Source: “What’s wrong with Libertarianism”, p. 452

The Education of Henry Adams (1907)

Weekly presidential address http://www.c-span.org/video/?401096-1/weekly-presidential-address (21 November 2015).
2010s

When asked at a town hall meeting prior to the 2008 New Hampshire Primary about a Bush statement that U.S. troops could be in Iraq for 50 years. 3 January 2008 http://www.cnn.com/2008/POLITICS/02/14/mccain.king/index.html
2000s, 2008

"A Personal View of APL", IBM Systems Journal, 30 (4), 1991

Joshua Felipe, as quoted in "The Libertarian Attack on Abraham Lincoln" https://diplomatdc.wordpress.com/2010/06/05/the-libertarian-attack-on-abraham-lincoln-by-gregory-hilton/ (5 June 2010), by Gregory Hilton, The DC World Affairs Blog, WordPress

“Motivation is not a thinking word; it’s a feeling word.”
Introduction to the 2002 edition, p. 13
The Heart of Change, (2002)
“Generally, it was impossible to understand the motives of aliens.”
Source: Light (2002), Chapter 2 “Gold Diggers of 2400 AD” (p. 16)

“Kindness can become its own motive. We are made kind by being kind.”
Section 123
The Passionate State Of Mind, and Other Aphorisms (1955)

“There are bad people in this world who are motivated by hate.”
As quoted in "South Carolina Governor Releases Strangely Obtuse Statement On Black Church Shooting" http://www.huffingtonpost.com/2015/06/18/nikki-haley-charleston-shooting_n_7612398.html?ir=Black+Voices&ncid=fcbklnkushpmg00000047 (18 June 2015), by Julia Craven, The Huffington Post
2010s
Source: Truth and Truthfulness (2002), p. 18

“I wonder sometimes if the motivation for writers ought to be contempt, not admiration.”
Future on Fire (1991), introduction.
10 Years On: Interview With Mafia Director Daniel Vavra http://www.ibtimes.co.uk/mafia-director-daniel-vavra-gta-grand-theft-409859 (November 29, 2012)
Statement to the media, 23 June 2005 http://www.fijitimes.com/story.aspx?id=23578, on the government's proposal to establish a Reconciliation and Unity Commission (excerpts)

"What is Love? Twelve Men of the Screen Give Their Ideas". Photoplay, February 1925, p. 36. (Photoplay Publishing Company). https://archive.org/stream/pho28chic#page/n163/mode/2up

execution wall
As quoted in The Cuban Revolution : Years of Promise (2005) by Teo A. Babun and Victor Andres Triay, p. 57, citing "Che Guevara: Assassin and Bumbler" by Humberto Fontova from Mensnewsdaily.com, 2 March 2004; Fontava does not identify a source for Guevara's statement.
Disputed
Hindu Temples – What Happened to Them, Volume II (1993)

“There are two things in life that keep me motivated, a cup of coffee and a second cup of coffee.”
Source: Robert Galinsky (2013) Coffee Crazy, p. 88

Source: Discipleship (1937), The Disciple and Unbelievers, p. 185.

Source: Words of a Sage : Selected thoughts of African Spir (1937), p. 59.
Source: Dynamic administration, 1942, p. xi-xii

“Lost golden ages can be very effective tools for motivating people in the present.”
p.61

Conflict and consensus: readings toward a sociological perspective (1973), p. 438, Harper & Row.

Introduction, Beast and Man: The Roots of Human Nature (1979).

“From Thee, great God: we spring, to Thee we tend,
Path, motive, guide, original, and end.”
Reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 257

“Sanga is a knowledgeable player and will be able to motivate the players”
Mohan De Silva, the Honorary Secretary, Sri Lanka Cricket (SLC), on Sangakarra joining the Sri Lanka squad in India, quoted on Deccan Chronicle, "Kumar Sangakkara to join Sri Lanka squad in India" http://www.deccanchronicle.com/sports/cricket/160316/icc-world-twenty20-sangakkara-to-join-sri-lanka-squad.html, March 16, 2016.
About

Quote of Richter on his 'Grey Paintings', in a letter to nl:Edy de Wilde, 23 February 1975; as cited on collected quotes on the website of Gerhard Richter: on 'Grey-paintings' https://www.gerhard-richter.com/en/quotes/subjects-2/grey-paintings-9
1970's

Source: Introduction to The New Institutionalism and Organizational Analysis, 1991, p. 8
Source: Darwin, God and the Meaning of Life: How Evolutionary Theory Undermines Everything You Think You Know (2010), p. 111

first through the Soviet intervention
"Disputations: Who Are You Calling Anti-Semitic?" in The New Republic (7 January 2009) http://www.tnr.com/article/politics/disputations-who-are-you-calling-anti-semitic

The Tragic Sense of Life (1913), VII : Love, Suffering, Pity

On Prohibition; sometimes misquoted as referring to Prohibition as "a noble experiment"; reported as such in Paul F. Boller, Jr., and John George, They Never Said It: A Book of Fake Quotes, Misquotes, & Misleading Attributions (1989), p. 47-48.
The New Day: Campaign Speeches of Herbert Hoover (1928)

"Hayek and conservatism", in Edward Feser (ed.), The Cambridge Companion to Hayek (2006)

2000s, The Sacred Warrior (2000)
Source: The Interpretation of Cultures (1973), p. 3-4
Catholic Ashrams (1994)

Explanatory Appendix, Sir Isaac Newton's Mathematical Principles of Natural Philosophy and His System of the World (1934) Tr. Andrew Motte, p. 674