Quotes about sincerity
page 3

Source: Ages in Chaos (2003), Chapter 6, “Upon this chaos rode the distressed ark” (p. 55)

Source: 1880s, Personal Memoirs of General U. S. Grant (1885), Ch. 67.

Journal of Discourses 2:170-171 (February 18, 1855)
Young comments on Joseph Smith’s visions. This quote is often presented in a heavily edited form which reads: "The Lord did not come…But he did send his angel to this same obscure person, Joseph Smith Jun.,…"
1850s

I pray you therefore to accept my thanks for the many instances you have enabled me to observe of respectable intelligence in that race of men, which cannot fail to have effect in hastening the day of their relief; [...].
Letter to Henri Grégoire http://memory.loc.gov/cgi-bin/query/r?ammem/mtj:@field(DOCID+@lit(tj110052)) (25 February 1809), as quoted in The Works of Thomas Jefferson in Twelve Volumes. Federal Edition. Collected and Edited by Paul Leicester Ford. Also quoted in The Science and Politics of Racial Research by William H. Tucker (1994), p. 11
1800s, Second Presidential Administration (1805-1809)

The Origin of Species: 150th Anniversary Edition (2009)

September 14, 1773
The Journal of a Tour to the Hebrides (1785)

"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

4 December 1893
New Lamps for Old (1893)

My Life and Confessions, for Philippine, 1786

“A man defines himself by his make-believe as well as by his sincere impulses.”
Un homme se définit aussi bien par ses comédies que par ses élans sincères.
http://books.google.com/books?id=9FgoAQAAIAAJ&q=%22un+homme+se+d%C3%A9finit+aussi+bien+par+ses+com%C3%A9dies+que+par+ses+%C3%A9lans+sinc%C3%A8res%22&pg=PA25#v=onepage
The Myth of Sisyphus (1942), An Absurd Reasoning
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 554.

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 554.

Source: Writings, ‘’The One and the Many‘’ (1971), Ch. VIII-7, p. 143.
?
The Journey Home: Autobiography of an American Swami (Tulsi Books, 2010)

1920s, Second State of the Union Address (1924)

“No man can produce great things who is not thoroughly sincere in dealing with himself.”
Literary Essays, vol. II (1870–1890), Rousseau and the Sentimentalists

Page 142
Publications, The Shah's Story (1980), On world leaders and statesmen

Quote from Corot's 'Notebooks', ca. 1856, as quoted in Artists on Art – from the 14th – 20th centuries, ed. by Robert Goldwater and Marco Treves; Pantheon Books, 1972, London, p. 241
1850s

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

Speech in the House of Commons (17 May 1794), reported in The Parliamentary History of England, from the Earliest Period to the Year 1803. Vol. XXXI (London: 1818), pp. 532-533.
1790s
The World As Revelation: Names of Gods (1980)

Source: The Unfinished Autobiography (1951), Chapter I, Part 2

Reported in Josiah Hotchkiss Gilbert, Dictionary of Burning Words of Brilliant Writers (1895), p. 103.

This was the style of the remarks made by religionists forty years ago. This young man, some four years afterwards, was visited again by a holy angel.
Journal of Discourses 13:65-66 (December 19, 1869).
Joseph Smith Jr.'s First Vision
Such statements from sufis can be multiplied. Amir Khusru, the dearest disciple of Nizamuddin Awliya (Chishtiyya luminary of Delhi), mourned loudly that if the Hanafi law (which accommodated Hindus as zimmîs) had not come in the way, the very name Hindu would not have survived.
Defence of Hindu Society (1983)

“Always be sincere, even if you don't mean it.”
Attributed without citation in The Oxford Dictionary of Quotations (1992) by Angela Partington, disputed in The Quote Verifier : Who Said What, Where, and When (2006) by Ralph Keyes, p. 224, as something Truman is not known to have said, nor was likely to have said.
Disputed

Letter to James Madison (July 31, 1788); reported in Memoir, correspondence, and miscellanies from the papers of Thomas Jefferson, Volumes 1-2 (1829), p. 343
1780s

Central Hall, Westminster, London, UK, November 2, 1971
1970s

PRWeek (30 Jan 2007) http://www.prweek.com/us/login/required/629646 In response to suggestions Wikipedia might change policies to allow PR firms to edit the site without breaking a rule called "WP:AUTO".
Defence of Hindu Society (1983)

Speech in the House of Lords on John Wilkes (9 January 1770), quoted in William Pitt, The Speeches of the Right Honourable the Earl of Chatham in the Houses of Lords and Commons: With a Biographical Memoir and Introductions and Explanatory Notes to the Speeches (London: Aylott & Jones, 1848), pp. 90-4.
Source: Organization and Management: Selected Papers (1948), p. 11

Speech in Birmingham (17 March 1939), quoted in The Times (18 March 1939), p. 12.
Prime Minister

Cosmic Trigger II : Down to Earth (1991)

Justification By Faith Alone (1738)

The Way of God's Will Chapter 3-3 Witnessing http://www.unification.org/ucbooks/WofGW/wogw3-03.htm Translated 1980.

1970's, Conversations with Samuel Beckett and Bram van Velde (1970 - 1972)

Joseph M. Juran (1989), cited in: Russell T. Westcott, "Leave A Legacy". Quality Progress. December 2009. p. 63.

(Referring to marriage). As quoted in Moglen, Helen (1984) Charlotte Brontë: the self conceived, University of Wisconsin Press, p. 235
Source: Trent's Last Case (1912), Chapter XIII: "Eruption"

Munich - Speech of April 12, 1922 https://archive.org/stream/TheSpeechesOfAdolfHitler19211941/hitler-speeches-collection_djvu.txt
1920s

Heidrun Reshöft & Joachim Pente (Transl.) " Art : Interview; Jörg Immendorff http://bombmagazine.org/article/322/j-rg-immendorff" at BOMB Magazine, (7) Fall 1983.

The mutual love between Allah and His servants http://english.bayynat.org.lb/Doctrines/Themutual1.htm

"Glenn talks to Joe the Plumber" at GlennBeck.com (10 December 2008) http://www.glennbeck.com/content/articles/article/198/19055/.

Letter (16 February 1931), quoted in Birkenhead, Halifax (Hamish Hamilton, 1965), p. 296
Viceroy of India

The Life of Edward Jenner M.D. Vol. 2 (1838) by John Baron, p. 447

On Charles Kennedy, who resigned as Liberal Democrat leader after revealing his treatment for alcoholism.

What is Prayer?
Bartlett's Familiar Quotations, 10th ed. (1919).
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 476.

Letter to the Archbishop of Canterbury (2 October 1938), quoted in Keith Feiling, Neville Chamberlain (London: Macmillan, 1946), p. 375.
Prime Minister
Quoted in Fade to Black: Christoffer Boe, interview with Darroch Greer, Millimeter (September 1, 2004)

“Son, son, I admire your sincerity. Always be sincere - whether you mean it or not.”
The Reluctant Cannibal

Sadhana - spiritual practice
Source: "I am That." P.74.

1960s, The American Promise (1965)

“A friend is a person with whom I may be sincere. Before him I may think aloud.”
1840s, Essays: First Series (1841), Friendship
Variant: A friend is a person with whom I may be sincere. Before him I may think aloud…

To Colonel Theodor Pilling, Lieutenant Colonel Roger Michael, Major Winrich Behr in the evening of April 20, 1945. They tuned in the Wehrmacht receiver, and listened Joseph Goebbels's speech marking the Hitler's Birthday. Quoted in "Battle for the Ruhr" - Page 378 - by Derek S. Zumbro - 2006

“ Why I’ll Stay Away from the Opening Ceremony of the Olympics http://www.guardian.co.uk/commentisfree/2008/aug/07/olympics2008.china.” Guardian, August 7, 2008.
2000-09, 2008

Review http://www.rogerebert.com/reviews/blue-velvet-1986 of Blue Velvet (19 September 1986)
Reviews, One-star reviews

Letter to Thomas Jefferson (2 February 1816)
1810s
Memorial inscription, reported in Edward Foss, The Judges of England, With Sketches of Their Lives (1864), Volume 8, p. 266-268.
About

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 553.

As quoted in "In Turkey's tussle with the EU, Erdogan thinks he holds the cards" http://www.reuters.com/article/us-europe-turkey-idUSKCN0Z82DA, Reuters (June 22, 2016)

Journal Of the House of Representatives the United States: Second Session of the Thirty-Second Congress (1853-03-03)

“The past was great no doubt, but I sincerely believe that the future will be more glorious still.”
Pearls of Wisdom
It – How Churches and Leaders Can Get It and Keep It (2008, Zondervan)

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)

Mastery http://www.poemhunter.com/poem/mastery-2/
From the poems written in English

Address at the International Women's Day Conference (2013)

Speech on November 4th at "Law not War" rally in Trafalgar Square, London, during the Suez crisis of 1956.
1950s

1920s, Ways to Peace (1926)

On her husband, Charles Lindbergh, in The New York Times (20 April 1980) http://www.nytimes.com/books/98/09/27/specials/lindbergh-jews.html

Amrita to her contemporary painters.
Sikh Heritage,Amrita Shergil