Quotes about species
page 5
"Eight Little Piggies", p. 77
Eight Little Piggies (1993)

“Nature is indifferent to the survival of the human species, including Americans.”
Radio address (29 September 1952)

Mourning and Funerals—For Whom (1977)

How to Operate Your Brain (1994) http://yoism.org/?q=node/47, a guided meditation spoken by Timothy Leary and set to music.
Source: Classification and indexing in science (1958), Chapter 1: The need for classification, p. 2.

Interview by Bill Moyers on Bill Moyers' World Of Ideas (17 October 1988); transcript http://www.pbs.org/moyers/faithandreason/print/pdfs/woi%20asimov1.pdf (page 6) - audio (20:12) http://www.pbs.org/moyers/faithandreason/media_players/asimovwoi_audio.html
General sources

“Perfectibility is one of the most unequivocal characteristics of the human species.”
Vol. 1, bk. 1, ch. 2
Enquiry Concerning Political Justice (1793)

Source: Art applied to industry: a series of lectures, 1865, p. 13

Upon The Mother Of The Gods (c. 362-363)
Source: The Ape that Thought It Was a Peacock: Does Evolutionary Psychology Exaggerate Human Sex Differences? (2013), p. 145
"Dietethics: Its Influence on Future Farming Patterns", in Animal Rights: A Symposium, edited by David Paterson & Richard D. Ryder (1979), p. 141

"11th Foundational Falsehood of Creationism" https://www.youtube.com/watch?v=Dm277H3ot6Y, Youtube (June 26, 2008)
Youtube, Foundational Falsehoods of Creationism

Source: 1960s, Counterblast (1969), p. 84
continuity (10) “Due Process”
Stand on Zanzibar (1968)

Source: The Geological Evidences of the Antiquity of Man (1863), Ch.21, p. 423
making parents and teachers a subtype of animal trainers
Source: Darwin, God and the Meaning of Life: How Evolutionary Theory Undermines Everything You Think You Know (2010), p. 155

Celui qui ignore à quel point la fortune variable et la nécessité tiennent toute âme humaine sous leur dépendance ne peut pas regarder comme des semblables ni aimer comme soi-même ceux que le hasard a séparés de lui par un abîme. La diversité des contraintes qui pèsent sur les hommes fait naître l'illusion qu'il y a parmi eux des espèces distinctes qui ne peuvent communiquer.
Source: Simone Weil : An Anthology (1986), The Iliad or The Poem of Force (1940-1941), p. 192

Translation from The Life of Pasteur, p. 140 https://archive.org/stream/cu31924012227595#page/n153/mode/2up
Soirées scientifiques de la Sorbonne (1864)

"Darwin’s view of the ‘races’ of men" http://www.patheos.com/blogs/reasonadvocates/2015/01/01/darwins-view-of-the-races-of-men/, Patheos (January 1, 2015)
Patheos
Last Men in London (1932)

Opening narration
The Living Planet (1984)
"A hundred years of thinking about God" (1998)

The New York Times, April 19, 1992, "Cormac McCarthy's Venomous Fiction" http://www.nytimes.com/books/98/05/17/specials/mccarthy-venom.html by Richard B. Woodward

The Origin of Species: 150th Anniversary Edition (2009)
p, 125
The Owner-Built Homestead (1977)

"William McDonough: Godfather of Green", WNYC Studio 360 (18 March 2008).

" Speciesism https://books.google.it/books?id=Rz30CgAAQBAJ&pg=PT59" (1970). Reported in Speciesism, Painism and Happiness: A Morality for the Twenty-First Century by Richard D. Ryder (Exeter: Imprint Academic, 2011), Chapter 2.

This passage suggests that more than than 50 years before the publication of On the Origin of Species, Hutton anticipated Darwin's theory of natural selection.
Source: An Investigation into the Principles of Knowledge (1794)
Source: The Wizard of Zao (1978), Chapter 3 (p. 33)

"The Calendar's New Clothes," New York Times (30 December 1999)

Senate speech, 1860.
1860s

volume I, chapter VI: "On the Affinities and Genealogy of Man", pages 200-201 http://darwin-online.org.uk/content/frameset?pageseq=213&itemID=F937.1&viewtype=image
The sentence "At some future period … the savage races" is often quoted out of context to suggest that Darwin desired this outcome, whereas in fact Darwin simply held that it would occur.
The Descent of Man (1871)
"Oh, that," Tlingel replied.
Unicorn Variation (1982)
Source: Introduction to Logical Theory (1952), p. 53 as cited in: Ian Hacking (1975) Why Does Language Matter to Philosophy?, p. 83.
This is Dinosaur: Echo Park Country and its Magic Rivers is a collection of essays and photographs edited by Wallace Stegner and published by Alfred A. Knopf in 1955. This passage is from the collection's first essay, "The Marks of Human Passage", which is by Stegner (page 17).

Source: The Bicameral Critic (1985), p. 112, An integrity born of hope: Notes on Christopher Isherwood (1976)

De Abaitua interview (1998)

Source: Sexual Personae: Art and Decadence from Nefertiti to Emily Dickinson (1990), p. 101

Melancholy hours, The Poetical Works and remains of Henry Kirke White, G. Routledge, London 1835.
Melancholy Hours

The Medals of Creation or First Lessons in Geology (1854)
"Why We Should Not Name Human Races—A Biological View", p. 231
Ever Since Darwin (1977)

Source: Animal Gospel: Christian Faith as if Animals Mattered (1998), p. 115
Quoted in Joanne Stepaniak, The Vegan Sourcebook (Lowell House, 1998), pp. 39-40.

Beyond the Last Thought: Freud's cigars and the long way round to Nirvana (p. 84)
The Silence of Animals: On Progress and Other Modern Myths (2013)
Kenneth Boulding (1966) Economics and Ecology. p. 225
1960s

As quoted in Improving the Quality of Life for the Black Elderly: Challenges and Opportunities : Hearing before the Select Committee on Aging, House of Representatives, One Hundredth Congress, first session, September 25, 1987 (1988)
This quote's earliest known source is from Leon C. Megginson (see Charles Darwin)
Misattributed

"9th Foundational Falsehood of Creationism" https://www.youtube.com/watch?v=Qfoje7jVJpU, Youtube (May 8, 2008)
Youtube, Foundational Falsehoods of Creationism

Speech in the House of Commons on the proposed unification of Great Britain and Ireland (7 February 1799), reported in The Parliamentary History of England, from the Earliest Period to the Year 1803. Vol. XXXIV (London: 1819), p. 334.
1790s

Source: The structure of social action (1937), p. v; Preface first edition

How Many People Can Live on Planet Earth? (BBC Horizon, 2009)

Un Art de Vivre (The Art of Living) (1939), The Art of Family Life

Quoted in "The Olduvai Theory: Sliding Towards a Post-Industrial Stone Age" by Richard C. Duncan http://dieoff.org/page125.htm
Originally from Fred Hoyle, Of Men and Galaxies (Seattle: University of Washington Press, 1964).

Reported in "Huge Study Of Diet Indicts Fat And Meat" http://www.nytimes.com/1990/05/08/science/huge-study-of-diet-indicts-fat-and-meat.html?pagewanted=2 by Jane Brody, in The New York Times (8 May 1990), p. 2.

Source: Company Manners: A Cultural Inquiry into American Life (1954), p. 120.

On the SARS epidemic, as quoted in " A Visit to My Kitchen: Vandana Shiva http://www.huffingtonpost.com/maria-rodale/a-visit-to-my-kitchen-van_b_775298.html?ir=India&adsSiteOverride=in", The Huffington Post (28 October 2011)
"No Future" (1995), in Fanged Noumena, p. 392

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

Source: A Plea for the Animals (2014), Chapter 4, p. 74

Source: Academy Series - Priscilla "Hutch" Hutchins, Odyssey (2006), Chapter 24 (p. 218)
Source: The Ape that Thought It Was a Peacock: Does Evolutionary Psychology Exaggerate Human Sex Differences? (2013), pp. 142-143
Extinction: Evolution and the End of Man (2002).
Source: Knowing Our Place in the Animal World, p. 75
Coyote America: A Natural and Supernatural History (2016)

"Remarks on the Rev. S. Haughton's Paper on the Bee's Cell, And on the Origin of Species" (1863).

Source: Short fiction, The Lost Canal (2013), p. 371

Two in the Bush (1966)

As quoted by Virginia Morell, Ancestral Passions: The Leakey Family and the Quest for Humankind's Beginnings (2011)

How Many People Can Live on Planet Earth? (BBC Horizon, 2009)

Speech on Reform of Representation in the House of Commons (7 May 1782)
1780s

How Many People Can Live on Planet Earth? (BBC Horizon, 2009)