Philosophy as Rigorous Science and Political Philosophy (1971)
Quotes about proportion
page 4

Source: 1860s, Evidence as to Man's Place in Nature (1863), Ch.2, p. 92

Source: The Exposition of 1851: Views Of The Industry, The Science, and the Government Of England, 1851, p. 52-53
Source: The Nude: A Study in Ideal Form (1951), Ch. V: Energy

Quoted in Money and Men by Robert McCann Rice (1941) but no prior source is extant.
Misattributed

"Mother Earth" (1911)

Arthur Cecil Pigou ed. (1925). Memorials of Alfred Marshall, New York: Augustus M. Kelley, 1966. p. 84
Gravity's Rainbow (1973)

Source: The Division of Labor in Society (1893), p. 376

The History of the Worthies of England (1662) ; Worthies of Huntingtonshire – John Yong.

Before he rejected circumstances of this kind in establishing the laws of nature, he should, at least, have shewn, that we have not all that evidence for them which we might "have had" upon supposition that they were true ; he should also have shewn, in a moral point of view, that the events were inconsistent with the ordinary operations of Providence ; and that there was no end to justify the means. Whereas, on the contrary, there is all the evidence for them which a real matter of fact can possibly have ; they are perfectly consistent with all the moral dispensations of Providence and at the same time that the resurrection of Jesus Christ is most unexceptionably attested, we discover a moral intention in the miracle, which very satisfactorily accounts for that exertion of divine power?
Source: The Credibility of Christianity Vindicated, p. 48; As quoted in " Book review http://books.google.nl/books?id=52tAAQAAMAAJ&pg=PA259," in The British Critic, Volume 12 (1798). F. and C. Rivington. p. 259-261

Von Foerster (1991) " Ethics and Second-Order Cybernetics http://ada.evergreen.edu/~arunc/texts/cybernetics/heinz/ethics.pdf"
1990s

Quote (1905), # 599, in The Diaries of Paul Klee, translation: Pierre B. Schneider, R. Y. Zachary and Max Knight; publisher, University of California Press, 1964
1903 - 1910

About the rise of the knowledge worker
1990s and later, "The Age of Social Transformation." 1994

"Remarks on the Character and Writings of Fénelon" (1843)
section 11, p. 420
The Evolution of Modern Capitalism: A Study of Machine Production (1906), Ch. XVII Civilisation and Industrial Development

June 20, 1944. Quoted in "Mussolini: The Last 600 Days of Il Duce" - Page 131 - by Ray Moseley - History - 2004.

“Hesitation increases in relation to risk in equal proportion to age.”
Pt. 1, Ch. 3
Papa Hemingway (1966)

1950s, Conquering Self-centeredness (1957)
Republished in: Stephen Peter Rigaud (1838) Historical Essay on the First Publication of Sir Newton's Principia http://books.google.com/books?id=uvMGAAAAcAAJ&pg=RA1-PA49. p. 50-51
Preface to View of Newton's Philosophy, (1728)

“One's ridiculousness increases in proportion as one denies it.”
Letter 141: La Marquise de Merteuil to le Vicomte de Valmont. Trans. Richard Aldington (1924). http://fr.wikisource.org/wiki/Les_Liaisons_dangereuses_-_Lettre_141
Les liaisons dangereuses (1782)

Source: The Social Problems of an Industrial Civilisation, 1945, p. 81-82

A History of Greek Mathematics (1921) Vol. 1. From Thales to Euclid

Source: J. A. Hobson's Imperialism: A Study: A Centennial Retrospective (2002), p. 3.

The Search for Talent, 12 August 1982 http://www.nas.gov.sg/archivesonline/speeches/record-details/73eb9163-115d-11e3-83d5-0050568939ad
1980s

Eminent Indians (1947)

“Influence must ever be in proportion to property; and it is right it should.”
Quoting Samuel Johnson (18 August 1773)
The Journal of a Tour to the Hebrides with Samuel Johnson, LL.D. (1785)

“A man is himself important precisely in proportion that all things seem important to him.”
Source: Sex and Character (1903), p. 127.

Preface to Instructive ausgabe. Klavier-Etuden von Fr. Chopin, 1880.

The Conquest of a Continent (1933)

Longing for the Harmonies: Themes and Variations from Modern Physics (1987)

“Laws, like sausages, cease to inspire respect in proportion as we know how they are made”
Gesetze sind wie Würste, man sollte besser nicht dabei sein, wenn sie gemacht werden
Though similar remarks are often attributed to Bismarck, this is the earliest known quote regarding laws and sausages, and is attributed to John Godfrey Saxe University Chronicle. University of Michigan (27 March 1869) books.google http://books.google.de/books?id=cEHiAAAAMAAJ&pg=PA164 and "Quote... Misquote" http://www.nytimes.com/2008/07/21/magazine/27wwwl-guestsafire-t.html by Fred R. Shapiro in The New York Times (21 July 2008); according to Shapiro's research, such remarks only began to be attributed to Bismarck in the 1930s.
Variants often attributed to Bismarck:
If you like laws and sausages, you should never watch either one being made.
Laws are like sausages — it is best not to see them being made.
Laws are like sausages. It is better not to see them being made.
Laws are like sausages. You should never see them made.
Laws are like sausages. You should never watch them being made.
Law and sausage are two things you do not want to see being made.
No one should see how laws or sausages are made.
To retain respect for sausages and laws, one must not watch them in the making.
The making of laws like the making of sausages, is not a pretty sight.
Je weniger die Leute darüber wissen, wie Würste und Gesetze gemacht werden, desto besser schlafen sie nachts.
The less the people know about how sausages and laws are made, the better they sleep in the night.
No citation exists for where this German phrase or this translation originated.
Misattributed

As quoted by Tanner, Bower, McLeish, and Gaspar in Ch. 1. "Unity and Symmetry in the De Luce of Robert Grosseteste," Robert Grosseteste and the pursuit of Religious and Scientific Learning in the Middle Ages (2016) ed., Jack P. Cunningham, Mark Hocknull, p. 17.
De artibus liberalibus (c. 1222-1237)

" Wild Wool http://books.google.com/books?id=LcIRAAAAYAAJ&pg=P361", Overland Monthly, volume 14, number 4 (April 1875) pages 361-366 (at page 364); reprinted in Steep Trails (1918), chapter 1
1870s

Source: A Treatise On Political Economy (Fourth Edition) (1832), Book III, On Consumption, Chapter IV, p. 400

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 215.

The Thirteen Books of Euclid's Elements (1908)
Source: Ideas have Consequences (1948), p. 53.

Clive James From the Land of Shadows (London: Picador, 1983) p. 206.
Criticism

Pleasure not attainable according to Epicurus, 11
Bartlett's Familiar Quotations, 10th ed. (1919)
Section 11, p. 418-419
The Evolution of Modern Capitalism: A Study of Machine Production (1906), Ch. XVII Civilisation and Industrial Development
Source: 1970s, Complex organizations, 1972, p. 128

Source: Natural Theology (1802), Ch. 26 : The Goodness of the Deity.

Source: Elements of the Philosophy of the Human Mind, 1792, p. 247

Without this you can’t play Chopin, you can’t play Mozart, and lastly absolutely not the Goldbergs.
Talkings on Bach

Source: The Principles of Political Economy and Taxation (1821) (Third Edition), Chapter I, Section V, On Value, p. 26

Source: (1776), Book V, Chapter II, Part II, p. 892.

LXX, To the Immortal Memory of Sir Lucius Cary and Sir Henry Morison, lines 65-74
The Works of Ben Jonson, Second Folio (1640), Underwoods

Cap. X - Bay of Pigs: On April 4, 1961 Senator Fulbright, at a meeting, verbally opposed plan.
A Thousand Days:John F.Kennedy in the White House (1965)

"The Journal of the Brothers de Goncourt," Fortnightly Review (October 1888).

Source: A Woman's Thoughts About Women (1858), Ch. 10
Source: 1980, "Art and Architecture," 1987, p. 177

page 23 in "Live or die with supply management", chapter 5 previewed April 2018 http://www.maximebernier.com/my_chapter_on_supply_management of "Doing Politics Differently: My Vision for Canada"
Geometry as a Branch of Physics (1949)

Source: The Principles of Ethics (1897), Part I: The Data of Ethics, Ch. 8, The Sociological View

1860s, The Prayer of the Twenty Millions (1862)

Moreland, India at the Death of Akbar, quoted from Lal, K. S. (1994). Muslim slave system in medieval India. New Delhi: Aditya Prakashan. Chapter 10
Muslim League Attack on the Sikhs and Hindus in Punjab, 1947 (1950)

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

Speech in the House of Commons (9 June 1976) http://www.margaretthatcher.org/document/103046
Leader of the Opposition

Source: Legal foundations of capitalism. 1924, p. 320
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 294.
Source: The theory of money, 1978, p. 12

“To all, proportioned terms he must dispense,
And make the sound a picture of the sense.”
Book III, p. 103
Vida's Art of Poetry (1725)

Liberty-Equality-Fraternity (1942)

Richter's quote from the catalog of a group exhibition in 'Palais des Beaux-Arts', Brussels, 1974
1970's

Source: Mathematical Lectures (1734), p. 388

[Swami Tapasyananda, Swami Nikhilananda, Sri Sarada Devi, the Holy Mother; Life and Conversations, 302]

Kosmos (1932), Above is Beginning Quote of the Last Chapter: Relativity and Modern Theories of the Universe -->

p, 125
Space, Time and Gravitation (1920)

Histoire de l'Academie (1744) p. 423; Les Oeuvres De Mr. De Maupertuis (1752) vol. iv p. 17; as quoted by Philip Edward Bertrand Jourdain, The Principle of Least Action https://books.google.com/books?id=y3UVAQAAIAAJ (1913) p. 5.

Source: 1860s, Evidence as to Man's Place in Nature (1863), Ch.2, p. 89

Abbas Sarwani, Tarikh-i-Sher Shahi, trs. E.D. vol. IV, pp. 390, 424. quoted from Lal, K. S. (1999). Theory and practice of Muslim state in India. New Delhi: Aditya Prakashan. Chapter 5

Small Houses: Their Economic Design and Construction (1922)

Source: 1905 - 1910, Notes d'un Peintre' (Notes of a Painter) (1908), p. 412
Source: Superiority and Subordination as Subject-matter of Sociology (1896), p. 169

If They Come in The Morning (1971)

Preface of M. Quetelet
A Treatise on Man and the Development of His Faculties (1842)