Preface; lead paragraph
A Mathematical Dictionary: Or; A Compendious Explication of All Mathematical Terms, 1702
Quotes about convenience
page 3
Time Frames: The Rethinking of Darwinian Evolution and the Theory of Punctuated Equilibria, Simon & Schuster: New York NY, 1985, pp.188-189
Source: The Nude: A Study in Ideal Form (1951), Ch. IX: The Nude As an End in Itself

September 18, 2009
Friday Night SmackDown
About early Christians in the Arena. Those about to Die (1958), Chapter 14

" "We're Not in Lake Wobegon Anymore" In These Times (26 August 2004) http://www.inthesetimes.com/site/main/article/979/

The Day the Universe Changed (1985)
Dominion (2002)

The Pirates of Penzance (1879)

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

Reported in Mark Steyn, "Mordecai Richler, 1931-2001", New Criterion (September 2001), Vol. 20, Issue 1, pp. 123–128.
Other

ME 13:431
1810s, Letters to John Wayles Eppes (1813)

1990s, Why "Free Software" is better than "Open Source" (1998)

The Liberator http://deadconfederates.com/2016/03/21/garrison-gives-up-on-colonization/ (22 January 1861)
The Liberator (1831 - 1866)

“[Black is] the most popular and the most convenient and the most elegant of all colors.”
As quoted in: Fakiko Fukai et al. (2004) Fashion in colors, p. 195

volume I; lecture 35, "Color Vision"; 35-1 "The human eye"; p. 35-1
The Feynman Lectures on Physics (1964)

Quoted in "Abortion rate a tragedy, says Abbott" http://www.theage.com.au/articles/2004/03/16/1079199224910.html on www.theage.com.au, March 17, 2004.
2004
Asia and Western Dominance: a survey of the Vasco Da Gama epoch of Asian history, 1498–1945

“I never lie unless it is absolutely necessary. Or convenient.”
Source: What Time's the Next Swan? (1962), Ch. 1, p. 8
Source: The Mechanism of Economic Systems (1953), p. 128; As cited in: Prices Revalued as Information: Circuit Elements, online document 2013

“Unfortunately, the world has not been designed for the convenience of mathematicians.”
Source: The (Mis)Behavior of Markets (2004, 2008), Ch. 2, p. 41

"On the Thermo-Electric Measurement of High Temperatures" (April 8, 1889)

On Public Eye, March 17, 1998. Real Video http://www.mediaresearch.org/rm/projects/99/Gumbel9/segment1.ram

Source: The Sundered Worlds (1965), Chapter 7 (pp. 229-230)

NPR: "Apple Requested 'Zero' Personal Data In Deals With Facebook, CEO Tim Cook Says" https://www.npr.org/2018/06/04/616280585/apple-requested-zero-personal-data-in-deals-with-facebook-ceo-tim-cook-says (4 June 2018)

Hunger of Memory: The Education of Richard Rodriguez (1982)

Source: History of Mathematics (1925) Vol.2, Ch. 6: Algebra, p. 378

Finch, William, quoted from Lal, K. S. (1992). The legacy of Muslim rule in India. New Delhi: Aditya Prakashan. Chapter 7
Source: Laws of Form, (1969), p. 104-05; as cited in: David Phillip Barndollar (2004) The Poetics of Complexity and the Modern Long Poem https://www.lib.utexas.edu/etd/d/2004/barndollardp50540/barndollardp50540.pdf, The University of Texas at Austin, p. 12-13.
Source: Elements of Cartography (1953), p. 318

A Hazy Shade of Winter
Song lyrics, Bookends (1968)

9-11, 2001 https://web.archive.org/web/20061015103427/http://indymedia.org.nz/usermedia/application/2/9-11.pdf.
Quotes 2000s, 2001

The Education of Henry Adams (1907)

Truth, ii
The Note-Books of Samuel Butler (1912), Part XIX - Truth and Convenience
Source: Beyond Hypocrisy, 1992, Doublespeak Dictionary (within Beyond Hypocrisy), p. 152.
Source: Science and Complexity, 1948, p. 536

Source: Practical Pictorial Photography, 1898, Printing the picture and controlling its formation, p. 76

Harsh Mander has already been condemned by the Press Council of India for spreading false rumours about alleged Hindu atrocities in his famous column Hindustan Hamara. Teesta Setalwad has reportedly pressured eyewitnesses to give the desired incriminating testimony against Hindus in the Gujarat riots.
K. Elst: Religious Cleansing of Hindus, 2004, Agni conference in The Hague, in The Problem with Secularism (2007)
2000s, The Problem with Secularism (2007)
Donald Davidson. "Quotation" in: Theory and Decision, March 1979, Vol. 11, Iss. 1, pp 27-40; Cited by Willis Goth Regier, Quotology, (2010), p. 4
Section 11 (p. 33)
Venus Plus X (1960)

Letter to George Washington (July 1778)

“Bacchus, n. A convenient deity invented by the ancients as an excuse for getting drunk.”
The Devil's Dictionary (1911)

Source: One is A Crowd: Reflections of An Individualist (1952), p. 47

Afterword to Exposures, p. 246
In Alien Flesh (1986)

The Education of Henry Adams (1907)

“Death is the most convenient time to tax rich people.”
In Lord Riddell's Intimate Diary of the Peace Conference and After, 1918-1923 (1933)
Later life
“What ideas are convenient to express inevitably becomes the important content of a culture.”
Ch 1: Medium is the Metaphor, p. 7
Amusing Ourselves to Death: Public Discourse in the Age of Show Business (1985)

Source: Old Kingdom series (The Abhorsen Trilogy), Lirael: Daughter of the Clayr (2001), p. 231.

Narrator, p. 234
Sharpe (Novel Series), Sharpe's Sword (1983)
Fourth Realm Trilogy (2005-2009), The Traveler (2005)

Source: Autobiography of Andrew Dickson White, Vol. 2 (1922), p. 6

On celebrities supporting efforts to curtail climate change. source http://observer.guardian.co.uk/omm/story/0,,1795948,00.html
Source: Last and First Men (1930), Chapter I: Balkan Europe; Section 4, “The Russo-German War” (pp. 29-30)

As quoted in "Dungeon Masters in Cyberspace" in The New York Times (27 February 2006) http://www.nytimes.com/2006/02/27/arts/27drag.html?_r=1&oref=slogin&pagewanted=all

"K-OS", interview with peta2 (20 July 2011) https://www.peta2.com/news/k-os/.

“I have always considered my face a convenience rather than an ornament.”
Letter http://books.google.com/books?id=sIE7AAAAYAAJ&q=%22I+have+always+considered+my+face+a+convenience+rather+than+an+ornament%22&pg=PA103#v=onpage to James Russell Lowell (18 March 1882)

Attorney-General v. Kerr (1840), 2 Beav. 428.
Quote

Source: Lee Kuan Yew as an opposition PAP member speaking to David Marshall, Singapore Legislative Assembly, Debates, 4 October, 1956
https://www.nytimes.com/interactive/2015/03/26/world/asia/29leekuanyew-quotes.html

Source: Refactoring: Improving the Design of Existing Code, 1999, p. 7

Letter to Dr. Price (Oct. 19, 1771) as quoted in John Towill Rutt, Life and Correspondence of Joseph Priestley http://books.google.com/books?id=psMGAAAAQAAJ (1831)
Source: Information Space, 1995, p. 290; As cited in: Ortiz et al. (2006)

Source: The Exposition of 1851: Views Of The Industry, The Science, and the Government Of England, 1851, p. 51-52
"Notes on PiL's Metal Box" (1980), p. 314
Psychotic Reactions and Carburetor Dung (1988)

The Bramley Moore [1964] P 200 at 220, commenting on the limitation of liability in maritime claims.
Judgments

"The Malevolent Jobholder," The American Mercury (June 1924), p. 156
1920s

In the House of Commons (17 November 1949) "Foreign Affairs" http://hansard.millbanksystems.com/commons/1949/nov/17/foreign-affairs#column_2225, on diplomatic recognition of the People’s Republic of China, as cited in Churchill by Himself (2008), ed. Langworth, PublicAffairs, p. 16 ISBN 1586486381
Post-war years (1945–1955)

Evaluation (p. 221)
Nickel and Dimed: On (Not) Getting by in America (2001)

1860s, Our Composite Nationality (1869)