Sankhodhar (Gujarat) Mirat-i-Ahmdi, translated into English by M.F. Lokhandwala, Baroda, 1965,pp 47-52
Quotes about gratitude
page 2
Harsh Narain, Myths of Composite Culture and Equality of Religions (1990)

“I may be kind,
And meet with kindness, yet be lonely still;
For gratitude is not companionship.”
A History of the Lyre
The Venetian Bracelet (1829)

Source: Interview by Jonathan Robinson (1994), p. 47.

“Gratitude looks to the past and love to the present; fear, avarice, lust, and ambition look ahead.”
Letter XVI
The Screwtape Letters (1942)

“Special mercy arouses more gratitude than universal mercy.”
The Saints' Everlasting Rest (1650), "The Splendor of the Saints' Rest"

2000s, Democratic National Convention speech (2008)

Source: Dictionary of Burning Words of Brilliant Writers (1895), p. 371.

“The Best way to express one's gratitude to the Divine is to feel simply happy.”
In "Paris (1897-1904)", also in Words of The Mother Sri Aurobindo Ashram, (1987) http://books.google.co.in/books?id=ljoqAAAAYAAJ, p. 163
Sayings

President Saddam Hussein's Speech on National Day (1981)

George Boole " Mr Boole on a General Method in Analysis http://books.google.com/books?id=aGwOAAAAIAAJ&pg=PA279," Philosophical Transactions, Vol. 134 (1844), p. 279, Footnote
1840s

My Life and Confessions, for Philippine, 1786

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

Jae Sa gwa Adam Kwon Shidae Dorae: The Arrival of the Era of the Fourth Adam's Realm http://www.unification.net/news/news19991024.html (1999-10-24)

Homily during the Requiem Mass of the funeral of [Pope John Paul II], on April 8, 2005
2005

“The gratitude of place-expectants is a lively sense of future favours.”
Prime Minister
Source: Reported in Bartlett's Familiar Quotations, 10th ed. (1919), stating "Hazlitt, in his Wit and Humour, says, 'This is Walpole’s phrase'". Compare: "La reconnaissance de la plupart des hommes n'est qu'une secrète envie de recevoir de plus grands bienfaits" (translated: "The gratitude of most men is but a secret desire of receiving greater benefits"), François de La Rochefoucauld, Maxim 298.
“Silent gratitude isn't much use to anyone.”
Quoted in The Girl's Book of Positive Quotations By Steve Deger, Leslie Ann Gibson, p. 28
EDM http://edmi.parliament.uk/EDMi/EDMDetails.aspx?EDMID=24837&SESSION=682 (Early Day Motion) 1255 proposed by Tony Banks in the House of Commons, 21 May 2004; quoted by Parliamentary Information Management Service.
Peterson and Herman, “The Kagame-Power Lobby’s Dishonest Attack on the BBC 2’s Documentary on Rwanda” https://mronline.org/2014/11/01/hp011114-html-2/, MR Online, November 1, 2014.
2010s

Source: Dictionary of Burning Words of Brilliant Writers (1895), p. 67.

Handbook of Rational Pathology, 1846-1853
"When I say I'm a Buddhist"[citation needed]

trans. Michael Chase (1995), p. 252
La Philosophie comme manière de vivre (2001)

1960s, State of the Union Address (1966)

“Ambition breaks the ties of blood, and forgets the obligations of gratitude.”
As quoted in History of the Anti-Corn Law League (1853), by Archibald Prentice, p. 54; around 1876 this began to began to be cited to W. Scott, and then around 1880 sometimes to Walter Scott, but without citations of source, including a variant: "Selfish ambition breaks the ties of blood, and forgets the obligations of gratitude" in a publication of 1907.

1920s, The American Soldier (1920)

Source: Let Your Life Speak: Listening for the Voice of Vocation (1999), pp. 48-49

Anecdotes of Oyasama, Foundress of Tenrikyo, from Anecdote 44, "A Snowy Day," p. 39.
Nakayama's exchange with Masui Rin, upon her arrival at the Nakayama residence during a stormy day.
Anecdotes of Oyasama
"Quotations"
Sketches from Life (1846)

The words in italics were underlined by Thérèse.
Source: Story of a Soul (1897), Ch. XI: Those Whom You Have Given Me, 1896–1897 As translated by Fr. John Clarke http://www.ewtn.com/therese/readings/readng6.htm (1976), p. 242.

Fourth Annual Message to Congress (5 December 1848) http://memory.loc.gov/cgi-bin/query/r?ammem/hlaw:@field(DOCID+@lit(sj0404)).

[David, Brooks, http://www.nytimes.com/2015/04/12/opinion/sunday/david-brooks-the-moral-bucket-list.html?smid=tw-nytdavidbrooks&seid=auto&_r=0, The Moral Bucket List, New York Times, April 11, 2015]
2010s

Speech http://hansard.millbanksystems.com/lords/1811/apr/26/vote-of-thanks-to-lord-wellington-and in the House of Lords (26 April 1811) on the Vote of Thanks to Lord Wellington, and the British and Portuguese Armies.
1810s
“In life, as in love, graceful leave-taking is the epitome of gratitude.”
Signposts to Elsewhere (2008)

““Thank you very much, sir,” said Beth with nothing resembling actual gratitude.”
Prologue “The Minder” section 5 (p. 10)
The Republic of Thieves (2013)

Speech at the funeral of Friedrich Alfred Krupp (27 November 1902), quoted in William Manchester, The Arms of Krupp 1587-1968 (London: Michael Joseph, 1968), p. 275
1900s

“He who receives a benefit with gratitude, repays the first installment of it.”
Qui grate beneficium accipit, primam eius pensionem solvit.
De Beneficiis (On Benefits): Book 2, cap. 22, line 1.
Moral Essays

Die wohlfeilste Art des Stolzes hingegen ist der Nationalstolz. Denn er verrät in dem damit Behafteten den Mangel an individuellen Eigenschaften, auf die er stolz sein könnte, indem er sonst nicht zu dem greifen würde, was er mit so vielen Millionen teilt. Wer bedeutende persönliche Vorzüge besitzt, wird vielmehr die Fehler seiner eigenen Nation, da er sie beständig vor Augen hat, am deutlichsten erkennen. Aber jeder erbärmliche Tropf, der nichts in der Welt hat, darauf er stolz sein könnte, ergreift das letzte Mittel, auf die Nation, der er gerade angehört, stolz zu sein. Hieran erholt er sich und ist nun dankbarlich bereit, alle Fehler und Torheiten, die ihr eigen sind, mit Händen und Füßen zu verteidigen.
Kap. II
Parerga and Paralipomena (1851), Aphorisms on the Wisdom of Life

The Confession (c. 452?)
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 371.

Thilanga Sumathipala on Mahela being a coaching consultant for England, quoted on The Guardian, "Kumar Sangakkara: England made smart move on mentor Mahela Jayawardene" http://www.theguardian.com/sport/2016/mar/13/kumar-sangakkara-england-mahela-jayawardene-world-twenty20-sri-lanka, March 13, 2016.
About

Los Angeles Times http://www.latimes.com/entertainment/news/la-et-hawke7-2010jan07,0,7915056.story (2010-01-07)
2010–present

“If my character is flawed by a few minor faults, but is otherwise decent and moral, if you can point out only a few scattered blemishes on an otherwise immaculate surface, if no one can accuse me of greed, or of prurience, or of profligacy, if I live a virtuous life, free of defilement (pardon, for a moment, my self-praise), and if I am to my friends a good friend, my father deserves all the credit… As it is now, he deserves from me unstinting gratitude and praise. I could never be ashamed of such a father, nor do I feel any need, as many people do, to apologize for being a freedman's son.”
Atqui si vitiis mediocribus ac mea paucis
mendosa est natura, alioqui recta, velut si
egregio inspersos reprehendas corpore naevos,
si neque avaritiam neque sordes nec mala lustra
obiciet vere quisquam mihi, purus et insons,
ut me collaudem, si et vivo carus amicis...
at hoc nunc
laus illi debetur et a me gratia maior.
nil me paeniteat sanum patris huius, eoque
non, ut magna dolo factum negat esse suo pars,
quod non ingenuos habeat clarosque parentis,
sic me defendam.
Book I, satire vi, lines 65–92
Satires (c. 35 BC and 30 BC)

Source: Dictionary of Burning Words of Brilliant Writers (1895), p. 60

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 26.
Speech to the House of Representatives, 12 August 2005

2000s, 2009, Farewell speech to the nation (January 2009)

Escudero, F. [Francis]. (2015, October 7). Retrieved from Facebook Page of Francis Escudero https://www.facebook.com/senchizescudero/posts/10153623885590610/Official
2015, Facebook

"Roger writes to readers" Chicago Sun Times (11 October 2006)

“No one is as capable of gratitude as one who has emerged from the kingdom of night.”
Nobel acceptance speech (1986)

Speech to the Byron centenary luncheon (29 April 1924), quoted in On England, and Other Addresses (1926), pp. 123-124.
1924

After Bartimaeus and 'the boy' defeat enemies entering the yard.
The Bartimaeus Trilogy Official Website, Bart's Journal
[...] To show his gratitude, Hsueh Pan performed his conjugal duty to the best of his ability that night.
Source: Dream of the Red Chamber (1958), pp. 273–274

inscription by Goya, 1820
Goya painted this long inscription in 1820, - in the tradition of the ex-votos in the churches - in the double-portrait, [of his friend, and of Goya himself as the patient], he made of his doctor Eugenio Garciá Arrieta who helped him in 1819 with a severe illness
1820s

"'Unhelpful to the workers' cause'" [undated], p. 175
The Madwoman's Underclothes (1986)
Source: Meditations in Wall Street (1940), p. 107
"Wild Moralists in the Animal Kingdom" https://www.firstthings.com/article/2003/04/wild-moralists-in-the-animal-kingdom, in First Things (April 2003).

Ode for Music http://www.thomasgray.org/cgi-bin/display.cgi?text=ocmu (1769), V, line 8

(A.J. Broomhall. Hudson Taylor and China’s Open Century, Book One: Barbarians at the Gates. London: Hodder and Stoughton and Overseas Missionary Fellowship, 1981, 354).

2010s, Hard Truths: Law Enforcement (2015)

“The gratitude of most men is but a secret desire to receive even greater benefits.”
La reconnaissance de la plupart des hommes n'est qu'une secrète envie de recevoir de plus grands bienfaits.
Variant translation: Gratitude is the lively expectation of favours yet to come.
Maxim 298. Compare: "The gratitude of place-expectants is a lively sense of future favours", attributed to Sir Robert Walpole.
Reflections; or Sentences and Moral Maxims (1665–1678)

Opening Keynote Address at NGO Forum on Women, Beijing China (1995)

“Gratitude is what we are without a story.”
Loving What Is: Four Questions That Can Change Your Life (2002)

The Last of the St. Aubyns
Heath's book of Beauty, 1833 (1832)

Exodus I, 8 (p. 206)
The Pentateuch and Haftorahs (one-volume edition, 1937, ISBN 0-900689-21-8

1850s, What to the Slave is the Fourth of July? (1852)

Quotes from Nobel Lecture

Quote from Rothko's letter to Whitney's director Lloyd Goodrich, End of 1952; as cited in Mark Rothko, a biography, James E. B. Breslin, University of Chicago Press, 1993, p. 304
Rothko was turning down a museum purchase
1950's

Remarks on the death of Osama bin Laden, May 5, 2011, The Los Angeles Times, May 1, 2011 http://web.archive.org/web/20110505081437/http://latimesblogs.latimes.com/washington/2011/05/osama-bin-laden-death-obama-george-w-bush.html,
2010s, 2011

“My feelings, gratitude, for instance, are denied me simply because of my social position.”
The Devil (Ivan's Nightmare)
The Brothers Karamazov (1879–1880)
Quoted from Lal, K. S. (1990). Indian muslims: Who are they. Chapter 2.
Fatawa-i-Jahandari
Acceptance speech while receiving the 1997 Templeton Prize for Progress in Religion, from HRH Prince Philip at a public ceremony held in Westminster Abbey, May 6, 1997.
Source: Leader of Spiritual Movement Wins $1.2 Million Religion Prize http://query.nytimes.com/gst/fullpage.html?res=9902E3DB1230F935A35750C0A961958260 New York Times, March 6, 1997.

Speech in the House of Commons (16 May 1820), quoted in George Henry Francis, Opinions and Policy of the Right Honourable Viscount Palmerston, G.C.B., M.P., &c. as Minister, Diplomatist, and Statesman, During More Than Forty Years of Public Life (London: Colburn and Co., 1852), pp. 15-16.
1820s

“The human mind is never better disposed to gratitude and attachment than when softened by fear.”
Farwell, Byron: Queen Victoria's Little Wars, p. 27-31

Un contadino che mi dà il suo pezzo di pecorino mi fa un regalo più grande di Giulio Làscari quando m’invita a pranzo. Il guaio è che il pecorino mi dà la nausea; e così non resta che la gratitudine che non si vede e il naso arricciato dal disgusto che si vede fin troppo.
Page 144
Il Gattopardo (1958)
Nahj al-Balagha

“Ambition breaks the ties of blood, and forgets the obligations of gratitude.”
The earliest attributions of this yet found are to it being a saying of William Scott, 1st Baron Stowell, in History of the Anti-Corn Law League (1853), by Archibald Prentice, p. 54; around 1876 it began to began to be cited to W. Scott, and then around 1880 sometimes to Walter Scott, but without citations of source, including a variant: "Selfish ambition breaks the ties of blood, and forgets the obligations of gratitude" in a publication of 1907. It seems to only recently to have begun to be attributed to Sallust, on the internet.
Misattributed

“Gratitude is a fruit of great cultivation; you do not find it among gross people.”
September 20, 1773
The Journal of a Tour to the Hebrides (1785)

Source: Natural Theology (1802), Ch. 26 : The Goodness of the Deity.

Subjugation of the Philippines Iniquitous (1902)
Vulgarians at the Gate: Trash TV and Raunch Radio: Raising Standards of Popular Culture (2001), ISBN 1615927514, p. 344