Variant: Mayor aims of general theory:
(1) There is a general tendency toward integration in the various sciences, natural and social.
(2) Such integration seems to be centered in a general theory of systems.
(3) Such theory may be an important means for aiming at exact theory in the nonphysical fields of science.
(4) Developing unifying principles running "vertically" through the universe of the individual sciences, this theory brings us nearer the goal of the unity of science.
(5) This can lead to a much-needed integration in scientific education.
Source: 1950s, "General systems theory," 1956, p. 38, cited in: Alexander Laszlo and Stanley Krippner (1992) " Systems Theories: Their Origins, Foundations, and Development http://archive.syntonyquest.org/elcTree/resourcesPDFs/SystemsTheory.pdf" In: J.S. Jordan (Ed.), Systems Theories and A Priori Aspects of Perception. Amsterdam: Elsevier Science, 1998. Ch. 3, pp. 47-74.
Quotes about field
page 5

2 April 1945.
Disputed, The Testament of Adolf Hitler (1945)
Source: 1950s, A Reconstruction of Economics, 1950, p. 6

1920s, The Democracy of Sports (1924)

James 5:1-5 http://www.jw.org/en/publications/bible/nwt/books/james/5/, NWT

About the flight of Jatwan and his death in battle, Kutbu-d din (general of Muhammad of Ghor). Hasan Nizami. Elliot and Dowson, Vol. II : Elliot and Dowson, History of India as told by its own Historians, 8 Volumes, Allahabad Reprint, 1964. pp. 217-218. Also quoted in Jain, Meenakshi (2011). The India they saw: Foreign accounts.

Quote in: Cezanne, by Ambroise Vollard, Dover publications Inc. New York, 1984, p. 32-33
Quotes of Paul Cezanne, 1860s - 1870s

Quantum Mechanics - Symbolism of Atomic Measurements (2001) p. 24 f.

"The End; <i>Live in New York</i>" (1970), "The End; Live at The Hollywood Bowl" (1968)

Quote from Van Doesburg's article: 'Is a Universal Plastic Notion Possible Today?', as cited in 'Bouwkundig weekblad' [a Dutch architectural magazine], XLI 39, 1920, pp. 230–231
this quote of Theo van Doesburg is one of his earliest Dada expressions
1920 – 1926

"The Licorice Fields at Pontefract" from A Few Late Chrysanthemums.
Poetry

Michael Halliday in: G. Thompson (1998) " Interview with M. A. K. Halliday, Cardiff, July 1998 http://www.scielo.br/pdf/delta/v17n1/a06v17n1.pdf". Answer to the question, how he saw his own work as fitting into the development of linguistics.
1970s and later

Quoted in "The Eichmann Kommandos" - Page 158 - by Michael Angelo Musmanno - 1961.

"The Songs of Selma"
The Poems of Ossian

quote of Paul Klee from the text Exact experiments in the realm of art, 1928; as quoted in 'Klee & Kandinsky', 2015 exhibition text, Lenbachhaus und Kunstbau Munich, 2015-2016 https://www.zpk.org/en/exhibitions/review_0/2015/klee-kandinsky-969.html
1921 - 1930

quote in 1942
1942 - 1948
Source: text for MoMA, describing the 'Garden in Sochi' - series, 26 June 1942

1850s, Latter-Day Pamphlets (1850), The Present Time (February 1, 1850)

Cited in Soviet Youth and Socialism http://leninist.biz/en/1974/SYAS228/3.1-Youth.and.Culture

All You Fascists (1944) https://www.woodyguthrie.org/Lyrics/All_You_Fascists.htm

"What must be an essential feature of any future fundamental physics?" Letter to Max Born (March 1948); published in Albert Einstein-Hedwig und Max Born (1969) "Briefwechsel 1916-55"<!-- p. 223 Nymphenburger, Munich-->, and in Potentiality, Entanglement and Passion-at-a-Distance: Quantum Mechanical Studies for Abner Shimony, Volume Two edited by Robert Cohen, Michael Horn, and John Stachel (1997), p. 121 http://books.google.com/books?id=DsNoIcQemTsC&lpg=PP1&pg=PA121#v=onepage&q&f=false
1940s

Address to the Lions Club of Jamshedpur, August 22, 1963.
Keynote: Excerpts from his speeches and chairman's statements to shareholders
One Foot in Eden (1972)

The Decline and Fall of Practically Everybody (1950), Part IV: A Few Greats, Madame du Barry

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

volume II; lecture 2, "Differential Calculus of Vector Fields"; section 2-1, "Understanding physics"; p. 2-1
The Feynman Lectures on Physics (1964)

[Maurice Allais, L'anisotropie de l'espace. La nécessaire révision de certains postulats des théories contemporaines. Les données de l'expérience, Editions Clément Juglar, Paris, 1997, 506, 2-908735-09-1]

The Second Declaration of Havana (1962)

The trial of Charles B. Reynolds for blasphemy (1887)

Lecture 1: Inflationary Cosmology: Is Our Universe Part of a Multiverse? Part I.
The Early Universe (2012)

The Passionate Shepherd to His Love (unknown date), stanzas 1 and 2. Compare: "To shallow rivers, to whose falls / Melodious birds sings madrigals; / There will we make our peds of roses, / And a thousand fragrant posies", William Shakespeare, Merry Wives of Windsor, act iii. scene i. (Sung by Evans.)

Meeting with US State Department officials (1985), as quoted in The Complete Idiot's Guide to the Gulf War (2002) by Charles Jaco, p. 23.

As quoted by Louise Grinstein, Sally I. Lipsey, Encyclopedia of Mathematics Education (2001) p. 235.
Source: "Does the history of psychology have a future?." 1994, p. 471

Preface
A Book of Travel to Three Continents (Translated from Dahri) (1914)

Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995)

Prem Nagar, Hardwar August 21,1962 (translated from Hindi). Birthday Celebrations, as published in "Hansadesh" magazine, Issue 1, Mahesh Kare, January 1963. (First published address.)
1960s
[Francis Weston Sears, Mechanics, heat and sound, Addison-Wesley principles of physics series Volume 1, 2nd Edition, Addison-Wesley Press, 1950, 447]

"Instead of a Present", p. 323 (1982).
Writing Home (1994)
Weckowicz (1967) "Chapter VI - Animal Studies of Hallucinogenic Drugs" in: Abram Hoffer, Humphry Osmond (1967) The hallucinogens. p. 555
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 611.

Speech to the Stretford Young Conservatives (21 January 1977), from A Nation or No Nation? Six Years in British Politics (Elliot Right Way Books, 1977), pp. 168-171
1970s
Source: "Does the history of psychology have a future?." 1994, p. 472

Quote in Chagall's letter to Pavel Davidovitch Ettering, 2 April, 1920, as quoted in Marc Chagall - the Russian years 1906 – 1922, editor Christoph Vitali, exhibition catalogue, Schirn Kunsthalle Frankfurt, 1991, p. 73
1920's

Source: Principles of industrial organization, 1913, p. 41-42
Nahj al-Balagha

Letter to Charles Eliot Norton (16 January 1871).
Appendix (p. 527)
The Coyote Kings of the Space-Age Bachelor Pad (2004)

For My Legionaries: The Iron Guard (1936), Nation and Culture

6th part Experimental Science, Ch.2 Tr. Richard McKeon, Selections from Medieval Philosophers Vol.2 Roger Bacon to William of Ockham
Opus Majus, c. 1267
"The fictions of factual representation"

Aaro Hellaakoski. "The song of the pike hauen laulu." Aina Swan Cutler (trans.) in: Aili Jarvenpa, Michael G. Karni (1989), Sampo, the magic mill: a collection of Finnish-American writing.
Robert A. Gordon and James E. Howell. Higher education for business. 1959

As quoted in "The Sportlight: Learning From Others" by Grantland Rice, in The New York Tribune (March 15, 1923), p. 14

Statement of the equivalence principle in Yearbook of Radioactivity and Electronics (1907)
1900s

"Natural History: The Forgotten Science" [1938]; Published in Round River, Luna B. Leopold (ed.), Oxford University Press, 1966, p. 62.
1930s

The Nuts of Knowledge (1903)
Source: Metasystems Methodology, (1989), p.xi-xii, cited in Philip McShane (2004) Cantower VII http://www.philipmcshane.ca/cantower7.pdf

pg. 515
Main Currents Of Marxism (1978), Three Volume edition, Volume II, The Golden Age

Source: The Pillow Book of Sei Shōnagon (1002), p. 138

Source: 1930s, A Dynamic Theory of Personality, 1935, p. 41; partly cited in: Kay Deaux, Mark Snyder (2012) The Oxford Handbook of Personality and Social Psychology. p. 74

“Into left-center field and deep, THIS IS A TIE BALLGAME!”
Calling Ryne Sandberg's first game-tying home run against Bruce Sutter in the ninth inning of a Cardinals–Cubs game at Wrigley Field, June 23, 1984.
p. 1

as translated by Martin H. Krieger "A 1940 letter of André Weil on analogy in mathematics." http://www.ams.org/notices/200503/fea-weil.pdf Notices of the AMS 52, no. 3 (2005) pp. 334–341, quote on p. 340

Audio lectures, Christian Charity vs Welfarism (September 4, 1996)
"The Landscape near an Aerodrome"
Poems (1933)

On the Banks of the Wabash (1896), chorus; this song as a whole was written by Dreiser's brother Paul (known as Paul Dresser); but Dreiser stated that "I wrote the first verse and chorus", in A Hoosier Holiday (1916) Ch. XLIII: "The Mystery of Coincidence".
Source: Mathematical Thought from Ancient to Modern Times (1972), p. 495

https://twitter.com/RichardDawkins/status/324171554491596803 (16 April 2013)
Twitter

“So different, this man
And this woman:
A stream flowing
In a field.”
Poetry Chicago, 1916)
Marriage (1916)
Sean Duffy: 'I love American football, but I love America more' http://www.washingtonexaminer.com/sean-duffy-i-love-american-football-but-i-love-america-more/article/2635691 (September 26, 2017)
Source: The Nature of Geography (1939), p. 215-216; as cited in: John A. Agnew, James S. Duncan (2011) The Wiley-Blackwell Companion to Human Geography. p. 122
Source: Heart of Ice A Triple Threat Novel with April Henry (Thomas Nelson), p. 12

Article in The Nation newspaper on 8 November,1845, titled "The Detectives",on the Administration of Government in Ireland

Music is a Prayer:An interview with Hariprasad Chaurasia by Ian Gottstein

1945 - 1970, A Report on the Wall' 1970