Quotes about gain
page 14

Interview http://news.google.com/newspapers?nid=1946&dat=19810316&id=mjkyAAAAIBAJ&sjid=vaQFAAAAIBAJ&pg=866,2677867&q=%22Freedom+must+be+gained+step+by+step+slowly+Freedom+is+a+food+which+must+be+carefully+administered+when+people+are+too+hungry+for+it%22 with Oriana Fallaci (22 & 23 February 1981)
Review http://www.reelviews.net/movies/v/van_helsing.html of Van Helsing (2004).
Half-star reviews

Letter to Edward Blount (27 August 1714); a similar expression in "Thoughts on Various Subjects" in Swift's Miscellanies (1727): Party is the madness of many, for the gain of a few.
Section 41 (p. 130)
Venus Plus X (1960)

About how government can function
1990s and later, "The Age of Social Transformation." 1994

volume I, chapter II: "Autobiography", page 40 http://darwin-online.org.uk/content/frameset?pageseq=58&itemID=F1452.1&viewtype=image
The Life and Letters of Charles Darwin (1887)
Act V, Scene VII, pp. 66–67
Mariamne: A Tragedy (1723)

2000s, 2002, State of the Union address (January 2002)
Book 4, § 44.
Life of Apollonius of Tyana

Source: The Principles of Agriculture, 1844, Section I: The fundamental principles, p. 1.

542 - 547
Fruits of Solitude (1682), Part I

(Probably 1918) Margaret MacMillan, Paris 1919 : Six Months That Changed the World, Random House Trade Paperbacks, 2003, ISBN 0375760520, p. 211.
Attributed
Jewish War
Gaines is refering here to his 1978 article "Progress in general systems research". In Klir, G. J. (ed.), Applied General Systems Research, New York: Plenum Press, 1978, pp. 3-28.
General systems research: quo vadis? (1979)

“Everywhere in life, the true question is not what we gain, but what we do.”
Essays. Goethe's Helena.
1830s, Sir Walter Scott (1838)

“Do not seek evil gains; evil gains are the equivalent of disaster.”
Gain not base gains; base gains are the same as losses.
Source: Works and Days (c. 700 BC), line 352; compare: "the gains of the wicked bring trouble", Book of Proverbs 15:6.

2010s, Open letter to Khizr M. Khan (31 July 2016)

Speech http://hansard.millbanksystems.com/commons/1937/apr/12/ministers-of-the-crown-bill in the House of Commons (12 April 1937) announcing an increase in MP's salaries.
1937

Mandate for Greatness,” First Inaugural Speech of President Ferdinand E. Marcos, 30 December 1965.
1965

1920s, Ordered Liberty and World Peace (1924)

Source: Multi-Secularism: A New Agenda, (2014), p. 1

“I value all things only by the price they shall gain in eternity.”
As quoted in The Law of Rewards : Giving What You Can't Keep to Gain What You Can't Lose (2003 by Randy C. Alcorn, p. 18
General sources
Source: "Corporate social responsibility in business-to-business markets", 2013, p. 54

"Prologue : The Wanderers"; the last line here may be related to far older expressions such as: "Naught venture, naught have" by Thomas Tusser.
The Earthly Paradise (1868-70)
Clement of Alexandria (Cambridge University Press: 2008), p. 63

Inaugural address (4 March 1921).
1920s
Source: Production, information costs, and economic organization. 1972, p. 777, Lead paragraph

Source: A Man of Law's Tale (1952), At the Scottish bar, p. 48

Quote of Matthijs Maris, in his letter to David Croal Thomson (Oct. 1890), as cited in: The Brothers Maris (James – Matthew – William), ed. Charles Holme; text: D.C. Thomson https://ia800204.us.archive.org/1/items/cu31924016812756/cu31924016812756.pdf; publishers, Offices of 'The Studio', London - Paris, 1907, p. BMxv p. BMxviii

Source: Books, America: Imagine a World without Her (2014), Ch. 16

Source: The Dark Is Rising (1965-1977), Silver on the Tree (1977), Chapter 4 “Midsummer Day” (p. 54)

"They Stopped the Moving Sands" part of a letter to his agent Lurton Blassingame, outlining an article on how the USDA was using poverty grasses to protect Florence, Oregon from harmful sand dunes (11 July 1957); the article was never published, but did develop several of the ideas that led to "Dune"; as quoted in The Road to Dune (2005), p. 266
General sources
Source: How to Win Friends and Influence People (1936), p. 61 (in 2016 edition)
p, 125
Sudden Origins: Fossils, Genes, and the Emergence of Species (1999)

Speech delivered in the gardens of the Shaab Hall (May 1, 1959).
Principles of the 14th July Revolution (1959)
It ought to preserve the memory of these with a certain discriminating measure of honor, trying to keep alive what was good in them and opposing the pragmatic verdict of the world.
"Up from Liberalism” Modern Age Vol. 3, No. 1 (Winter 1958-1959), p. 25, cols. 1-2.

Guidon v. Robson (1809), 2 Camp. 304.

Maktubat-i-Imam Rabbani translated into Urdu by Maulana Muhammad Sa’id Ahmad Naqshbandi, Deoband, 1988, Volume I, p.388 ff.This letter was written to Shaikh Farid alias Nawab Murtaza Khan who was opposed to Akbar’s religious policy, and who supported Jahangir’s accession after taking from the latter a promise that Islam will be upheld in the new reign.
From his letters

Part VII, Chapter 2: On Killing
Mahayana, Śūraṅgama Sūtra
Source: Something More, A Consideration of the Vast, Undeveloped Resources of Life (1920), p. 63-67

Source: Globalization - A Basic Text (2010), Chapter 3, Related Processes I: Imperialism, Colonialism, and More, p. 80

Interview by Sabahattin Atas, circa September 2003 (see also: Necessary Illusions https://web.archive.org/web/20000307213545/http://www.zmag.org/chomsky/ni/ni-c10-s16.html) http://www.chomsky.info/interviews/200309--.htm.
Quotes 2000s, 2003
“We have to serve ourselves for many years before we gain our own confidence.”
Source: Meditations in Wall Street (1940), p. 104

Quoted from Lal, K. S. (1992). The legacy of Muslim rule in India. New Delhi: Aditya Prakashan.
Travels in the Mogul Empire (1656-1668)

1990s, An Exchange With a Civil War Historian (June 1995)

Source: Aphorisms and Reflections (1901), p. 106

Jadunath Sarkar, Fall of the Mughal Empire, Volume II, Fourth Edition, New Delhi, 1991, p.210-11

Presidential campaign (April 12, 2015 – 2016), (July 28, 2016)

What Really Divides Us https://web.archive.org/web/20120127094927/http://www.ronpaularchive.com/2002/12/what-really-divides-us/ (23 December 2002).
2000s, 2001-2005

Audio lectures, Hybridization and the Law (n. d.)

Song; reported in Bartlett's Familiar Quotations, 10th ed. (1919).

2014, Speech: Sponsorship Speech for the FY 2015 National Budget
Source: Addiction to Perfection (1982), p. 11

pg. 144
Main Currents Of Marxism (1978), Three Volume edition, Volume I, The Founders

A letter read by her husband, suffragist Henry Blackwell, to the twenty-fifth annual convention of the National Woman Suffrage Association (1893); as quoted in History of Woman Suffrage, Vol. 4 (1902) by Susan B. Anthony and Ida Husted Harper

Maasir-i-alamgiri, translated into English by Sir Jadu-Nath Sarkar, Calcutta, 1947, pp. 312-15
Quotes from late medieval histories
Out Among the Big Things http://www.cowboypoetry.com/ac.htm#AMONG, st. 1.
Out Where the West Begins and Other Western Verses http://www.cowboypoetry.com/ac.htm#outbk (1917)

Discourse 32, J. Cohoon and H. Crosby, trans. (1940), p. 177
"Black Future, Reverse Racism: The "Black Armband" View of History is Intent on Dividing the Nation Forever", The Bulletin, (April 8, 1997)

Speech http://hansard.millbanksystems.com/lords/1962/nov/08/britain-and-the-common-market in the House of Lords on the British application to join the Common Market (8 November 1962).
1960s

Source: Commissions and Omissions by Indian Presidents and Their Conflicts with the Prime Ministers Under the Constitution: 1977-2001, P.236.

You Can Lead an Atheist to Evidence, But You Can't Make Him Think (2009)

From a protocol of the Government of Israel, translated from Hebrew by Israel Shahak, in "Truth or Myth about Israel? Read between Quotation Marks" by Charley Reese in The Orlando Sentinel (13 June 1999); later published as "What Israeli Historians Say About 1948 Ethnic Cleansing" in Washington Report on Middle East Affairs (September 1999) http://www.wrmea.com/backissues/0999/9909042.html

Source: Kritik der zynischen Vernunft [Critique of Cynical Reason] (1983), p. 59
What is success?, quoted in He Has Achieved Success Who Has Lived Well, Laughed Often and Loved Much, in QuoteInvestigator.com (26 June 2012) http://quoteinvestigator.com/2012/06/26/define-success/.

Freeman (1948), p. 169

2010s, Morsy is the Arab World's Mandela (2013)
Diederik Aerts (2001) " Time, space and reality : an analysis from physics. http://www.vub.ac.be/CLEA/aerts/publications/2001TimeSpaceReality.pdf"

from Гений среди людей ("The Genius of the People") -- a manuscript written in 1918
Source: The Renewal Factor, 1987, p. 7

Wesley J and Wesley C (1743), "Hymns and Sacred Poems", 4th edition, page 78, at archive.org. https://archive.org/details/hymnsandsacredpo00wesliala Wikisource Full text.
Hymns and Sacred Poems (1739)
The Eve of the Revolution (1918)

1990s, Ayodhya and After: Issues Before Hindu Society (1991)

1980s and later, Knowledge, Evolution and Society (1983), "Coping with Ignorance", "Science and Socialism"
Source: http://www.aei.org/publication/a-conversation-with-friedrich-a-von-hayek/