Quotes about similarity
page 8

Man and Dolphin (1961), p.190-191; as quoted in The Sounding of the Whale: Science and Cetaceans in the Twentieth Century (2012), by D. Graham Burnett, p.578-579

Edward Allington. " About Time http://www.frieze.com/issue/article/about_time/," in Frieze, Issue 92 June-August 2005
1970s, Economics for the Citizen (1978)

Source: Muhammad: A Biography of The Prophet (2001), Chapter 4: "Revelation"

Gause 1934
[Foraging habitat partitioning in Roseate and Common Terns, The Auk, 107, 2, April 1990, 351–358, 10.2307/4087619, https://www.jstor.org/stable/4087619]

Source: 1930s- 1950s, The End of Economic Man (1939), p. 244

Introduction
Elementary Sketches of Moral Philosophy (1849)

The Novel: What It Is (1893)

From website: The Ansari X PRIZE (http://www.xprize.org/teams/mojave_aerospace_ventures.php ). Retrieved Nov. 23, 2004.

Praelectiones (Lectures, 1744) quoted in Larson (1967:317)
(Acknowledgments, p. 99).
Book Sources, The River of Winged Dreams (2010)

Cited in: Daniel Rancour-Laferriere (1985), Signs of the flesh: an essay on the evolution of hominid sexuality, p. 112

November 2017 statement https://www.wdio.com/news/al-franken-statement-leeann-tweeden/4672510/ in response to allegations of sexual harassment and groping made by Leeann Tweeden against Franken.
Source: Manufacturing Consent, with Noam Chomsky, 1988, p. 252.

Speech in Limehouse, East London (30 July 1909), quoted in Better Times: Speeches by the Right Hon. D. Lloyd George, M.P., Chancellor of the Exchequer (London: Hodder & Stoughton, 1910), p. 148.
Chancellor of the Exchequer

"Gauss's Abstract of the Disquisitiones Generales circa Superficies Curvas presented to the Royal Society of Gottingen" (1827) Tr. James Caddall Morehead & Adam Miller Hiltebeitel in General Investigations of Curved Surfaces of 1827 and 1825 http://books.google.com/books?id=SYJsAAAAMAAJ& (1902)

Three New Deals: Reflections on Roosevelt's America, Mussolini's Italy, and Hitler's Germany, 1933-1939, Wolfgang Schivelbusch, (2006) Metropolitan Books, pp. 28-29.

Speech https://api.parliament.uk/historic-hansard/commons/1938/feb/22/foreign-affairs#S5CV0332P0_19380222_HOC_332 in the House of Commons (22 February 1938) after the resignation of the Foreign Secretary Anthony Eden
The 1930s

Laurence Chollet (November 19, 1991) "Knocking Them Dead Even As a Grave Figure, This Actor Has The Last Laugh", The Record, p. D05.

Lal, K. S. (1994). Muslim slave system in medieval India. New Delhi: Aditya Prakashan. Chapter 5 (quoting Masalik-ul-Absar, E.D., III, 580., Battutah)

Review of a life of William Cecil, 1st Baron Burghley by Edward Nares, Edinburgh Review, 1832)
Attributed

Source: Main Currents Of Marxism (1978), Three Volume edition, Volume II, The Golden Age, pp. 515-6
Source: Ludwig von Bertalanffy (1901-1972) (1989), p. 4
"‘Interview with Nikita Gohkale’" https://vasfotios.wixsite.com/citylights/single-post/2017/12/12/Interview-with-Nikita-Gohkale. City Lights. December 12, 2017.

William H. Starbuck and Philippe Baumard (2009). "The seeds, blossoming, and scant yield of organization theory," in: Jacques Rojot et. al (eds.) Comportement organisationnel - Volume 3 De Boeck Supérieur. p. 15
Source: The Look of Maps (1952), p. 16; as cited in: Kirk Patrick Goldsberry (2007) Real-time Traffic Maps. p. 23

Source: Linear programming and extensions (1963), p. 1

One of the foremost Templar scholars records of Jacques DeMolay's dying words.

Source: Plasticity Into Power: Comparative-Historical Studies on the Institutional Conditions of Economic and Military Success (1987), pp. 169-170

Source: "Quotes", Notebooks and Lectures on the Bible and Other Religious Texts (2003), p. 215

2000, Excerpts from an address to Fiji's Great Council of Chiefs, 28 July 2005
Source: Emerson: The Mind on Fire (1995), p. 90

p. 238 http://books.google.com/books?id=BoDMBgAAQBAJ&pg=PT238
Writings on an Ethical Life (2000)
The Complete Neurotic's Notebook (1981), Unclassified

Passages from the Life of a Philosopher (1864), ch. 26 "Street Nuisances"
Passages from the Life of a Philosopher (1864)
Source: Everyone is African: How Science Explodes the Myth of Race (2015), p. 14.
Source: The Principles of Organization, 1947, p. 29-30

Non-Fiction, Homage to QWERT YUIOP: Selected Journalism 1978-1985 (1986)

Allinson v. General Council of Medical Education and Registration (1894), L. R. [1894], 1 Q. B. p. 758.

Source: The Cambridge Encyclopedia of the English Language, 1987, p. 371

XVIII, 3
The Kitáb-I-Asmá

In regard to Cambodia, our Party and state have condemned the bloodthirsty activities of the Pol Pot clique, a tool of the Chinese social-imperialists. We hope that the Cambodian people will surmount the difficulties they are encountering as soon as possible and decide their own fate and future in complete freedom without any 'guardian'. (Selected Works Vol. VI, p. 419.)
Writings, Other

Kiyokazu Washida. The Past, the Feminine, the Vain in Talking to Myself (2002), Ch. 3: Feedom or the Vain.

2000s, 2003, Remarks on U.S.-British relations and foreign policy (November 2003)
Source: Fascism: Comparison and Definition (1980), A History of Fascism, 1914—1945 (1995), pp. 210-211
pg 15
Becoming A Barbarian (2016)

De Kooning’s lecture Trans/formation at Studio 35, 1950.
1950's

Speech in Greenock (7 October 1903), quoted in The Times (8 October 1903), p. 8.
1900s

At the opening of the Liverpool Overhead Railway, 4 February 1893. Quoted in the Liverpool Echo of the same day, p. 3
1890s

From Her Books, I Have Chosen To Stay And Fight, HATING ONESELF

Once the boundary line of the class struggle is wiped away and we have started upon the inclined plane of compromise, there is no stopping. Then we can only go down and down until there is nothing deeper.
No Compromise – No Political Trading (1899)

Spencer here references William Benjamin Carpenter, Principles of Comparative Physiology http://books.google.com/books?id=ovgEAAAAYAAJ& see p. 473
The Development Hypothesis (1852)

1990s, I Am a Man, a Black Man, an American (1998)

Message to the Tricontinental (1967)
The Pageant of Life (1964), On Teachers & Education

"Do Animals Have Beliefs?" (1979); as quoted in The Case for Animal Rights by Tom Regan (University of California Press, 2004), p. 36 https://books.google.it/books?id=Y0tWjRmxFE4C&pg=PA36.
The Natural West: Environmental History in the Great Plains and Rocky Mountains (2003)

Source: Poverty (1912), p. 17-19
The End of Market Fundamentalism (1999)
Source: Dynamics in Psychology, 1940, p. 135

Source: Mahayana, Mahāparinirvāṇa Sūtra (or Nirvana Sutra), Chapter Seven: On the Four Aspects
Hindu View of Christianity and Islam (1992)
Source: Sartre: Romantic Rationalist (1953), Ch. 8, p. 119

The Geopolitics of Culture: Five Substrates, (2014)

Attributed

Quoted from Lal, K. S. (1999). Theory and practice of Muslim state in India. New Delhi: Aditya Prakashan. Chapter 5 (quoting Gordon Sanderson, 'Archaeology at the Qutb', Archaeological Survey of India Report, 1912-13; Ibn Battutah)

p. 94 https://books.google.com/books/about/More_and_Different.html?id=tU9yOac455kC&pg=PA94
More and Different: Notes from a Thoughtful Curmudgeon (2011)

2000s, 2008, Address to the United Nations General Assembly (September 2008)
Benedict Anderson, " Frameworks of Comparison: Benedict Anderson reflects on his intellectual formation http://www.lrb.co.uk/v38/n02/benedict-anderson/frameworks-of-comparison," London Review of Books, Vol. 38, No. 2. 21 January 2016, p. 15-18

In an interview with Christiane Vielhaber, 1986; as cited on collected quotes on the website of Gerhard Richter: 'on Other subjects' https://www.gerhard-richter.com/en/quotes/other-aspects-6
1980's
Joseph Sarkis, Adrien Presley and Donald H. Liles (1995) "The management of technology within an enterprise engineering framework." in: Computers & industrial engineering.