pg. 147
Pretty Mess book (2018)
Quotes about philosophy
page 14
if he does depart from his state of wonder, he has ceased to philosophize.
Source: Leisure, the Basis of Culture (1948), The Philosophical Act, pp. 105–106

January 6, 1842
Journals (1838-1859)

Edward A. Shanken. " The House That Jack Built: Jack Burnham's Concept of "Software" as a Metaphor for Art http://www.artexetra.com/House.html" in Leonardo Electronic Almanac 6:10 (November, 1998)

Z. Hanfi, trans., in The Fiery Brook (1972), p. 67
Towards a Critique of Hegel’s Philosophy (1839)
Persecution and the Art of Writing (1952), Introduction

Source: Sexual Personae: Art and Decadence from Nefertiti to Emily Dickinson (1990), p. 9
Language Education in a Knowledge Context (1980)
Question to Scott Ritter in Scott Ritter: Neocons as Parasites http://web.archive.org/web/20050401004909/http://www.alternet.org/waroniraq/21631/.
Source: Star Maker (1937), Chapter I: The Earth; 1. The Starting Point (p. 11)
Source: What is Political Philosophy (1959), p. 91

Antonin Scalia, A Matter of Interpretation 23 (Princeton, NJ: Princeton University Press, 1998). http://web.archive.org/web/20060911103004/http://www.tannerlectures.utah.edu/lectures/scalia97.pdf (PDF).
1990s

“It is precisely in knowing its limits that philosophy consists.”
A 727, B 755
Critique of Pure Reason (1781; 1787)

Page 4
The Challenge to Liberty (1934)

B 44
Aphorisms (1765-1799), Notebook B (1768-1771)

Mario Bunge (1996). Finding Philosophy in Social Science. Yale University Press. p. 317.
1960s-1990s

Source: Elements of the Philosophy of the Human Mind, 1792, p. 9; Lead paragraph (II)

Source: An Essay on The Principle of Population (First Edition 1798, unrevised), Chapter I, paragraph 9, lines 1-2

Source: Memory, Sorrow, and Thorn, Stone of Farewell (1990), Chapter 28, “Sparks” (p. 707).

The Meaning of Education and other Essays and Addresses https://books.google.com/books?id=H9cKAAAAIAAJ (1898) p. 45 as quoted by Robert Édouard Moritz, Memorabilia Mathematica; Or, The Philomath's Quotation-book https://books.google.com/books?id=G0wtAAAAYAAJ (1914)

“Undoubtedly, philosophy caused the Revolution. But what caused philosophy? Theological arrogance.”

Source: Sexual Personae: Art and Decadence from Nefertiti to Emily Dickinson (1990), p. 247

Letters of Voltaire and Frederick the Great (New York: Brentano's, 1927), trans. Richard Aldington, letter 141 from Frederick to Voltaire (1759-07-02)

Source: The Tales of Alvin Maker, Heartfire (1998), Chapter 9.

“The chief error in philosophy is overstatement.”
Pt. I, ch. 1, sec. 1.
1920s, Process and Reality: An Essay in Cosmology (1929)

Source: Philosophy of Education, p. 86.

Anarchism: What it Really Stands For http://books.google.com/books?id=U5ZYAAAAMAAJ&q="Anarchism+is+the+only+philosophy+which+brings+to+man+the+consciousness+of+himself+which+maintains+that+God+the+State+and+society+are+non-existent+that+their+promises+are+null+and+void+since+they+can+be+fullfilled+only+through+man's+subordination"&pg=PA58#v=onepage (1910)
Source: How to Argue and Win Every Time (1995), Ch. 6 : The Power of Prejudice : Examining the Garment, Bleaching the Stain, p. 74

'The choice of public magistrates belongs unto the people by God's own allowance'.
1920s, Speech on the Anniversary of the Declaration of Independence (1926)

"Pierre Menard, Author of the Quixote"
The Garden of Forking Paths (1942)
Variant: There is no intellectual exercise which is not ultimately useless.

Shri K. R. Narayanan President of India in Conversation with N. Ram on Doordarshan and All India Radio

As quoted in "At 90, and Still Dynamic : Revisiting Sir Karl Popper and Attending His Birthday Party" by Eugene Yue-Ching Ho, in Intellectus 23 (Jul-Sep 1992)
Source: The Interpretation of Cultures (1973), p. 3

Elizabeth Hyde Stevens, "Millennials just don’t get it! How the Muppets created Generation X" http://www.salon.com/2014/04/06/millennials_just_dont_get_it_how_the_muppets_created_generation_x/, Salon (April 6, 2014)
About

Mont Saint Michel and Chartres (1904)

Introduction to Truth and Progress: Philosophical Papers, Volume 3 (1998).

1960s, Why Jesus Called A Man A Fool (1967)

" Does religion promote morality? https://whyevolutionistrue.wordpress.com/2017/11/28/does-religion-promote-morality/" November 28, 2017

On Practice (1937)

Source: 1860s, Evidence as to Man's Place in Nature (1863), Ch.2, p. 72

“Questions that pertain to the foundations of mathematics, although treated by many in recent times, still lack a satisfactory solution. Ambiguity of language is philosophy's main source of problems. That is why it is of the utmost importance to examine attentively the very words we use.”
Quaestiones, quae ad mathematicae fundamenta pertinent, etsi hisce temporibus a multis tractatae, satisfacienti solutione et adhuc carent. Hic difficultas maxime en sermonis ambiguitate oritur. Quare summi interest verba ipsa, quibus utimur attente perpendere.
Arithmetices principia, nova methodo exposita [The Principles of Arithmetic, presented by a new method] (1889)
(with Rylla Cathryn Smith) What Libertarians Believe, "Introduction: The Zero Aggression Principle".

Source: Creation Myths (1972), Creation Renewed & Reversed, P. 331

Source: Consciencism (1964), Philosophy In Retrospect, p. 5.
In shock poll, Libertarian Johnson beats Trump among economists (August 23, 2016)

July 27, 1960 Remarks at the Republican National Committee Breakfast, Morrison Hotel, Chicago, Illinois http://www.presidency.ucsb.edu/ws/?pid=11891#ixzz1fU73Watz
1960s

Carta abierta a Donald Trump http://www.huffingtonpost.es/jorge-majfud/carta-abierta-a-donald-tr_b_10218246.html Translation at The Huffington Post http://www.huffingtonpost.com/entry/57dc39fee4b0d5920b5b2aac?timestamp=1474051083758.

Letter to Charles Thomson (9 January 1816), on his The Life and Morals of Jesus of Nazareth http://etext.lib.virginia.edu/etcbin/toccer-new2?id=JefJesu.sgm&images=images/modeng&data=/texts/english/modeng/parsed&tag=public&part=all (the "Jefferson Bible"), which omits all Biblical passages asserting Jesus' virgin birth, miracles, divinity, and resurrection. Published in The Works of Thomas Jefferson in Twelve Volumes http://oll.libertyfund.org/ToC/0054.php, Federal Edition, Paul Leicester Ford, ed., New York: G. P. Putnam's Sons, 1904, Vol. 11 http://oll.libertyfund.org/Texts/Jefferson0136/Works/0054-11_Bk.pdf, pp. 498–499
1810s

The Twilight of Civilization (1939). London: Sheed & Ward, 1946, p. 41.

Introduction
1830s, Nature http://www.emersoncentral.com/nature.htm (1836)

Source: The City of God and the True God as its Head (In Royce’s “The Conception of God: a Philosophical Discussion Concerning the Nature of the Divine Idea as a Demonstrable Reality”), p.111

Mont Saint Michel and Chartres (1904)
“Kant's critical philosophy is the most elaborate fit of panic in the history of the Earth.”
Source: The Thirst for Annihilation: Georges Bataille and Virulent Nihilism (1992), Chapter 1: "The death of sound philosophy", p. 1
Book 3, § 18.
Life of Apollonius of Tyana

Andere wieder, von diesen Wahrheitsforschern, schmelzen Philosophie und Religion zu einem Kentauren zusammen, den sie Religionsphilosophie nennen; Pflegen auch zu lehren, Religion und Philosophie seien eigentlich das Selbe;—welcher Sah jedoch nur in dem Sinne wahr zu seyn scheint, in welchem Franz I., in Beziehung auf Karl V., sehr versöhnlich gesagt haben soll: „was mein Bruder Karl will, das will ich auch,”—nämlich Mailand, Wieder andere machen nicht so viele Umstände, sondern reden geradezu von einer Christlichen Philosophie;—welches ungefähr so herauskommt, wie wenn man von einer Christlichen Arithmetik reden wollte, die fünf gerade seyn ließe. Dergleichen von Glaubenslehren entnommene Epitheta sind zudem der Philosophie offenbar unanständig, da sie sich für den Versuch der Vernunft giebt, aus eigenen Mitteln und unabhängig von aller Auktorität das Problem des Daseyns zu lösen.
Sämtliche Werke, Bd. 5, p. 155, E. Payne, trans. (1974) Vol. 1, pp. 142-143
Parerga and Paralipomena (1851), On Philosophy in the Universities

Source: The Dance of Life http://www.gutenberg.net.au/ebooks03/0300671.txt (1923), Ch. 3

Letter to A.S. Suvorin (February 25, 1895)
Letters
Source: The Worldly Philosophers (1953), Chapter III, Adam Smith, p. 62

Source: The Postman (1985), Section 3, “Cincinnatus”, Chapter 9 (p. 225)
Source: The Fall of Hyperion (1990), Chapter 41 (p. 419)

Quoted in "The Myth of Saint Thomas and the Mylapore Shiva Temple: Third Revised Edition" by Ishwar Sharan (2010) https://books.google.com.au/books?id=HL35NxR5S_QC
2000s

Letter to H.L. Mencken July 28, 1934.

Beast and Man: The Roots of Human Nature (1979). 167.

Wenn man auch der protestantischen Kirche manche fatale Engsinnigkeit vorwirft, so muß man doch zu ihrem unsterblichen Ruhme bekennen: indem durch sie die freie Forschung in der christlichen Religion erlaubt und die Geister vom Joche der Autorität befreit wurden, hat die freie Forschung überhaupt in Deutschland Wurzel schlagen und die Wissenschaft sich selbständig entwickeln können. Die deutsche Philosophie, obgleich sie sich jetzt neben die protestantische Kirche stellt, ja sich über sie heben will, ist doch immer nur ihre Tochter; als solche ist sie immer in betreff der Mutter zu einer schonenden Pietät verpflichtet.
Source: The Romantic School (1836), p. 24
Latin for All Occasions (1990)

Source: Das Ressentiment im Aufbau der Moralen (1912), L. Coser, trans. (1973), p. 67

At Apple's 2013 Q1 earnings call http://arstechnica.com/apple/2013/01/tim-cook-on-the-imac-cannibalization-is-a-huge-opportunity-for-us/ (2013-01-23)
iPad sales had been increasing at the expense of Mac sales.

“Philosophy has taught me to rely on my own convictions rather than on the judgements of others and to concern myself less with whether I am well thought of than whether what I do or say is evil.”
Docuit me ipsa philosophia a propria potius conscientia quam ab externis pendere iuditiis, cogitareque semper, non tam ne male audiam, quam ne quid male vel dicam ipse vel agam.
25. 160; translation by A. Robert Caponigri
Oration on the Dignity of Man (1496)

Evil in Modern Thought: An alternative history of philosophy (2002)