Quotes about logic (1454 quotes, page 7)

“Of course there is much criticism of the court by this group or that, depending on the court's decisions in various highly publicized cases. Some of the criticism is profoundly uninformed and unhelpful. And all too often, uncivil second-guessing is not encumbered by the constraints of facts, logic or reasoned analysis.”

Clarence Thomas (1948) Associate Justice of the Supreme Court of the United States

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

Decision , Dependency

“A successful attempt to express logical propositions by symbols, the laws of whose combinations should be founded upon the laws of the mental processes which they represent, would, so far, be a step towards a philosophical language.”

George Boole (1815–1864) English mathematician, philosopher and logician

Source: 1840s, The Mathematical Analysis of Logic, 1847, p. 5

Law , Success

“The judgment that human life is worth living, or rather can and ought to be made worth living, … underlies all intellectual effort; it is the a priori of social theory, and its rejection (which is perfectly logical) rejects theory itself.”

Herbert Marcuse book One-Dimensional Man

Source: One-Dimensional Man (1964), p. xliii

Life , Effort

“Magic isn't real. There has to be a logical reason explanation for the effect of Ivory Tower achievement on Real World success. And here it is: despite the chasm between what students learn and what workers do, academic success is a strong signal of worker productivity. The labor market doesn't pay you for the useless subjects you master; it pays for preexisting traits you reveal by mastering them.”

Bryan Caplan (1971) American political scientist

[The Case against Education, 13, https://books.google.com/books?id=Mws8DwAAQBAJ&pg=PA13]
The Case against Education (2018)

World , Strong , Learning , Success

“I presume that few who have paid any attention to the history of the Mathematical Analysis, will doubt that it has been developed in a certain order, or that that order has been, to a great extent, necessary -- being determined, either by steps of logical deduction, or by the successive introduction of new ideas and conceptions, when the time for their evolution had arrived.”

George Boole (1815–1864) English mathematician, philosopher and logician

Source: 1850s, A treatise on differential equations (1859), p. v; cited in: Quotations by George Boole http://www-history.mcs.st-and.ac.uk/Quotations/Boole.html, MacTutor History of Mathematics, August 2010.

History , Mathematics , Idea , Time

“The war industries in many countries and the enormous trade in weapons of all kinds generate corruption and fuel conflict throughout the world. The existence of an immensely powerful military-industrial complex constitutes a danger to democracy, both internationally and domestically, because it follows its own logic and operates independently of popular participation.”

Alfred de Zayas (1947) American United Nations official

Alfred de Zayas' comments to the remarks made by NGOs and States during the United Nations (UN) Human Rights Council Session http://www.ohchr.org/EN/NewsEvents/Pages/DisplayNews.aspx?NewsID=13713&LangID=E Comments by Alfred de Zayas, Independent Expert on the promotion of a democratic and equitable international order, following the Interactive Dialogue on the presentation of his thematic report.
2013

War , World , Democracy , Country

“But in a little measure my small voice of individual experience does join in the declaration of philosophy that the good is the only world, and that world is a world of spirit. It is also a universe where order is All, where an unbroken logic holds the parts together, where disorder defines itself as non-existence, where evil, as St. Augustine held, is delusion, and therefore is not.”

Helen Keller book Optimism

Optimism (1903)

World , Universe , Evil , Parting

“Doctor Who has never pretended to be hard science fiction … At best Doctor Who is a fairytale, with fairytale logic about this wonderful man in this big blue box who at the beginning of every story lands somewhere where there is a problem.”

Neil Gaiman (1960) English fantasy writer

As quoted in "Neil Gaiman reveals power of writing Doctor Who" by Tim Masters at BBC News (24 May 2010)

Fairytale , Problem , Science , Box

“The Ninth Circuit Court decision was lucid, unambiguous, and consistent. The logic was clear and it said when you use copyrighted material on a video cassette recorder, it is an infringement of copyright.”

Jack Valenti (1921–2007) President of the MPAA

Testimony to the US House of Representatives (1982)

Decision

“Macro-evolution would be defined as changing into a different kind of animal. There is no similarity between micro-evolution and macro-evolution. Many evolutionists will use micro-evolution to try to prove that macro-evolution is true. We must guard ourselves not to fall for this false logic.”

Kent Hovind (1953) American young Earth creationist

Dissertation for doctor of philosophy in christian education (May 25, 1991)

Change , Animals , Falseness

“The Oriental heritage, due to the long sojourn of the Moors in Spain, had a profound influence on the taste of the people. From these Oriental invaders the Spaniards derived the great surfaces of blank wall with occasional spots of luxuriant ornament that characterize nearly all their work. From them also comes the love of bright color shown in the use of polychrome tiles and rich fabrics and in the painting and gilding of sculpture and ornamental motives. While the large constructive forms, particularly vaults and domes, are frankly and simply expressed, the ornament as in the work of the Orient, is rather an incrustation, a mere surface decoration, than a pretense at logical construction.”

Clarence Stein (1882–1975) American architect

A Triumph of Spanish Colonial Style (1916)

Love , People , Color , Motivation

“If dialectical logic understands contradiction as “necessity” belonging to the very “nature of thought,” … it does so because contradiction belongs to the very nature of the object of thought, to reality, where Reason is still Unreason, and the irrational still the rational. Conversely, all established reality militates against the logic of contradictions — it favors the modes of thought which sustain the established forms of life and the modes of behavior which reproduce and improve them. The given reality has its own logic and its own truth; the effort to comprehend them as such and to transcend them presupposes a different logic, a contradicting truth. They belong to modes of thought which are non-operational in their very structure; they are alien to scientific as well as common-sense operationalism. … These modes of thought appear to be a relic of the past, like all non-scientific and non-empirical philosophy. They recede before a more effective theory and practice of Reason.”

Herbert Marcuse book One-Dimensional Man

Source: One-Dimensional Man (1964), p. 142

Life , Truth , Behavior , Understanding

“Aristotle (De Anima, I. 1) makes in the first place the general remark that it appears as if the soul must, on the one hand, be regarded in its freedom as independent and as separable from the body, since in thinking it is independent; and, on the other hand, since in the emotions it appears to be united with the body and not separate, it must also be looked on as being inseparable from it; for the emotions show themselves as materialized Notions (λόγοι έννοια), as material modes of what is spiritual. With this a twofold method of considering the soul, also known to Aristotle, comes into play, namely the purely rational or logical view, on the one hand, and, on the other hand, the physical or physiological; these we still see practiced side by side. According to the one view, anger, for instance, is looked on as an eager desire for retaliation or the like; according to the other view it is the surging upward of the heartblood and the warm element in man. The former is the rational, the latter the material view of anger; just as one man may define a house as a shelter against wind, rain, and other destructive agencies, while another defines it as consisting of wood and stone; that is to say, the former gives the determination and the form, or the purpose of the thing, while the latter specifies the material it is made of, and its necessary conditions.”

Georg Wilhelm Friedrich Hegel book Lectures on the Philosophy of History

Georg Wilhelm Friedrich Hegel, Lectures on the Philosophy of History Vol 2 1837 translated by ES Haldane and Francis H. Simson first translated 1894 p. 181
Lectures on the Philosophy of History (1832), Volume 2

Soul , Thinking , Freedom , Appearance

“Of science and logic he chatters,
As fine and as fast as he can;
Though I am no judge of such matters,
I’m sure he’s a talented man.”

Winthrop Mackworth Praed (1802–1839) British politician, poet

The talented Man.

Science

“History knew a midnight, which we may estimate at about the year 1000 A. D., when the human race lost the arts and sciences even to the memory. The last twilight of paganism was gone, and yet the new day had not begun. Whatever was left of culture in the world was found only in the Saracens, and a Pope eager to learn studied in disguise in their unversities, and so became the wonder of the West. At last Christendom, tired of praying to the dead bones of the martyrs, flocked to the tomb of the Saviour Himself, only to find for a second time that the grave was empty and that Christ was risen from the dead. Then mankind too rose from the dead. It returned to the activities and the business of life; there was a feverish revival in the arts and in the crafts. The cities flourished, a new citizenry was founded. Cimabue rediscovered the extinct art of painting; Dante, that of poetry. Then it was, also, that great courageous spirits like Abelard and Saint Thomas Aquinas dared to introduce into Catholicism the concepts of Aristotelian logic, and thus founded scholastic philosophy. But when the Church took the sciences under her wing, she demanded that the forms in which they moved be subjected to the same unconditioned faith in authority as were her own laws. And so it happened that scholasticism, far from freeing the human spirit, enchained it for many centuries to come, until the very possibility of free scientific research came to be doubted. At last, however, here too daylight broke, and mankind, reassured, determined to take advantage of its gifts and to create a knowledge of nature based on independent thought. The dawn of the day in history is know as the Renaissance or the Revival of Learning.”

Carl Gustav Jacob Jacobi (1804–1851) German mathematician

"Über Descartes Leben und seine Methode die Vernunft Richtig zu Leiten und die Wahrheit in den Wissenschaften zu Suchen," "About Descartes' Life and Method of Reason.." (Jan 3, 1846) C. G. J. Jacobi's Gesammelte werke Vol. 7 https://books.google.com/books?id=_09tAAAAMAAJ&pg=PA309 p.309, as quoted by Tobias Dantzig, Number: The Language of Science (1930).

Life , World , Faith , Law

“Logic and truth are two very different things, but they often look the same to the mind that’s performing the logic.”

Theodore Sturgeon book More Than Human

Source: More Than Human (1953), Chapter 2, p. 97

Truth

“Then there is this idea that the world owes you a living. Here is a little thought about that. It isn't particularly logical but it makes my point. You were paid when you were born, with the privilege of living. Death is all that is coming to you. Life came to you when you were born.”

John Sloan (1871–1951) American painter

Ibid., p. 27.
The Gist of Art (1939)

Life , Death , World , Idea

“As a transitional condition, skepticism is logical insurrection; as a system, it is anarchy. Skeptical method would therefore be much the same as rule by insurgents.”

Karl Wilhelm Friedrich Schlegel (1772–1829) German poet, critic and scholar

Als vorübergehender Zustand ist der Skeptizismus logische Insurrektion; als System ist er Anarchie. Skeptische Methode wäre also ungefähr wie insurgente Regierung.
#97, as translated in Walter Benjamin: Selected Writings (1996), vol. 1, p. 136
Athenäum (1798 - 1800)

“Many Christians deny what faith means, at least initially. Some try to equivocate. Some resort to the logical fallacy of false equivalence, insinuating that science depends on faith too, or that their religion has evidence. Some Christians even try to reverse the definition of faith into a belief that is based on evidence. But that’s not what it is. Faith is not simply “trust” either, as some allege. That is the wrong context. Faith in the context of religion is a form of trust, but with a prefix and suffix required to turn mere trust into faith. It must be a [complete] trust [that is not based on evidence]. This is according a consensus of mainstream authoritative religious and other definitive sources, not just within Abrahamic religions in the Bible and Qur’an, but also in other religions like the Hindu’s Bhagavad-Gita.”

Aron Ra (1962) Aron Ra is an atheist activist and the host of the Ra-Men Podcast

Patheos, Philosophistry http://www.patheos.com/blogs/reasonadvocates/2017/04/12/philosophistry/ (April 12, 2017)

Faith , Religion , Science , Dependency

“Why don’t you believe in God? I get that question all the time. I always try to give a sensitive, reasoned answer. This is usually awkward, time consuming and pointless. People who believe in God don’t need proof of his existence, and they certainly don’t want evidence to the contrary. They are happy with their belief. They even say things like “it’s true to me” and “it’s faith.” I still give my logical answer because I feel that not being honest would be patronizing and impolite. It is ironic therefore that “I don’t believe in God because there is absolutely no scientific evidence for his existence and from what I’ve heard the very definition is a logical impossibility in this known universe” comes across as both patronizing and impolite.”

Ricky Gervais (1961) English comedian, actor, director, producer, musician, writer, and former radio presenter

"Ricky Gervais: Why I’m an Atheist," WSJ, 2010 http://blogs.wsj.com/speakeasy/2010/12/19/a-holiday-message-from-ricky-gervais-why-im-an-atheist/

God , People , Faith , Feeling

“Propaganda in favor of action that is consonant with enlightened self-interest appeals to reason by means of logical arguments based upon the best available evidence fully and honestly set forth. Propaganda in favor of action dictated by the impulses that are below self-interest offers false, garbled or incomplete evidence, avoids logical argument and seeks to influence its victims by the mere repetition of catchwords, by the furious denunciation of foreign or domestic scapegoats, and by cunningly associating the lower passions with the highest ideals, so that atrocities come to be perpetrated in the name of God and the most cynical kind of Realpolitik is treated as a matter of religious principle and patriotic duty.”

Aldous Huxley book Brave New World Revisited

Source: Brave New World Revisited (1958), Chapter 4 (p. 33)

God , Passion , Falseness

“It was an earnest, extreme, and irreverent book, a book that, in its mockery of authority, its relentless logic, its relentless hewing to the line of Reason, letting the sacred cows fall where they might, followed the old familiar script: CAMPUS REBEL FLAYS FACULTY. But the script was all balled up, for the author was more reactionary than any of the dignitaries in their black robes, and his book damned Yale as a hotbed of atheism and collectivism.”

Dwight Macdonald (1906–1982) journalist

Review of God and Man at Yale by William F. Buckley, Jr., quoted in Grace Elizabeth Hale, A Nation of Outsiders:How the White Middle Class Fell in Love With Rebellion in Postwar America. Oxford University Press, 2011.

Books

“Why cannot the Irish get and save money in Ireland? And why must they cross the Atlantic before they can get hold of a piece of land? Our "territorial" system is one which works a wide and silent cruelty, beggaring, demoralising and destroying multitudes of our people. I should like to join a League sworn or pledged to its entire overthrow. There are facts enough afloat that would suffice to make a revolution in opinion with regard to it, and it follows logically on the Free Trade movement.”

John Bright (1811–1889) British Radical and Liberal statesman

Letter to Cobden (September 1849), quoted in G. M. Trevelyan, The Life of John Bright (London: Constable, 1913), p. 164.
1840s

Money , People

“I will ask of you only the ability to read English and to think logically—no high school mathematics, and certainly no higher mathematics.”

Edmund Landau (1877–1938) German Jewish mathematician

Grundlagen der Analysis [Foundations of Analysis] (1930) Preface for the Student, as quoted by Eli Maor, Trigonometric Delights (2013)

School , Mathematics , Thinking , Reading

“Gradually I became aware [c. 1914-1918] that Cubism did not accept the logical consequences of its own discoveries; it was not developing abstraction towards its ultimate goal: the expression of pure reality.”

Piet Mondrian (1872–1944) Peintre Néerlandais

1930's

Reality

“It remains to mention some of the ways in which people have spoken misleadingly of logical form. One of the commonest of these is to talk of ' the logical form' of a statement; as if a statement could never have more than one kind of formal power; as if statements could, in respect of their formal powers, be grouped in mutually exclusive classes, like animals at a zoo in respect of their species. But to say that a statement is of some one logical form is simply to point to a certain general class of, e. g., valid inferences, in which the statement can play a certain role. It is not to exclude the possibility of there being other general classes of valid inferences in which the statement can play a certain role.”

P. F. Strawson (1919–2006) British philosopher

Source: Introduction to Logical Theory (1952), p. 53 as cited in: Ian Hacking (1975) Why Does Language Matter to Philosophy?, p. 83.

People , Way , Animals

“These universal means of expression were discovered in modern painting by a logical and gradual progress toward ever more abstract form and color. Once the solution was discovered, there followed the exact representation of relations alone, that is to say, of the essential and fundamental element in any plastic emotion of the beautiful.”

Piet Mondrian (1872–1944) Peintre Néerlandais

1910's, Natural Reality and Abstract Reality', 1919

Beauty , Color , Universe , Painting

“The key point today is to establish the universal validity of individual mythology... The artistic moment is therefore that in which the discovery of pre-conscious universal myths comes about, and in the reduction of these into the form of images. It is clear that if the artist is to be able to bring to light zones of myth that are authentic and virginal he must have both an extreme degree of self-awareness and the gifts of iron precision and logic.”

Piero Manzoni (1933–1963) Italian artist

Source: For the Discovery of a Zone of Images', Piero Manzoni, 1957, pp. 16-17

Light , Universe

“Convicted fraud and pseudoscience charlatan, Mister Kent Hovind argues that what has already been directly-observed and shown to be certainly true is (in his opinion) impossible, and the only option he thinks is possible is that an imperceptible (and possibly imaginary) mystical being poofed everything out of nothing by magic. The irony is that what he proposes is physically impossible because it defies all natural laws, and it’s logically implausible since it has neither precedent nor parallel anywhere in reality to imply that it could still be true anyway. Where is there evidence anywhere that such a thing actually exists, or that anything even could have any of these abilities?”

Aron Ra (1962) Aron Ra is an atheist activist and the host of the Ra-Men Podcast

"14th Foundational Falsehood of Creationism" https://www.youtube.com/watch?v=MYsnVMjG4lk Youtube (January 3, 2009)
Youtube, Foundational Falsehoods of Creationism

Law , Fraud , Nature , Thinking

“It becomes logical to ask where the idea originates that the rules of the game of life ought to be such that those who are weak, disabled or ill should be helped?
One answer is obvious: this is the game typically played in childhood. Every one of us was, at one time, a weak and helpless child, cared for by adults: without such help we would not have survived and become adults.
Another, almost equally obvious answer is that the prescription of a help-giving attitude toward the weak is embodied in the dominant religions of Western man.
Judaism, and especially Christianity, teach these rules by means of parable and prohibition, example and exhortation, and by every other means available to their representatives.”

Thomas Szasz (1920–2012) Hungarian psychiatrist

Source: The Myth of Mental Illness: Foundations of a Theory of Personal Conduct (1961), Chapter 10: The Ethics of Helplessness and Helpfulness.

Life , Religion , Game , Idea

“From the fact that many libertarians believe that the state has no legitimacy, they arrive at the position that anything the state does is illegitimate. This is a logical confusion. Consider the murderer who happens on a scene of a rape while fleeing the law, saves the woman, and pounds the rapist. Is this good deed illegitimate because performed by a murderer?”

Ilana Mercer South African writer

“Libertarian Wrangling,” http://www.ilanamercer.com/phprunner/public_article_list_view.php?editid1=320 WorldNetDaily.com, July 31, 2002.
2000s

Law

“Our exploration of emergent social structures across domains of human activity and experience leads to an over-arching conclusion: as an historical trend, dominant functions and processes in the Information Age are increasingly organized around networks. Networks constitute the new social morphology of our societies, and the diffusion of networking logic substantially modifies the operation and outcomes in processes of production, experience, power, and culture. While the networking form of social organization has existed in other times and spaces, the new information technology paradigm provides the material basis for its pervasive expansion throughout the entire social structure.”

Manuel Castells (1942) Spanish sociologist (b.1942)

Source: The Rise of the Network Society, 1996, p. 500

Age , Time

“God in Christ is a different kind of lord who is not in solidarity with the powerful but in solidarity with the lowly. … This position—at the heart of the new world proclaimed by Paul—directly contradicts the logic of the Roman Empire.”

Joerg Rieger (1963) divinity school scholar

Source: Christ and Empire (2007), p. 52

God , World , Heart , Christ

“VII. Let me call your attention to the recent tragedy in New Orleans, whereof the facts are obtained entirely through Pro-Slavery channels. A considerable body of resolute, able-bodied men, held in Slavery by two Rebel sugar-planters in defiance of the Confiscation Act which you have approved, left plantations thirty miles distant and made their way to the great mart of the South-West, which they knew to be the indisputed possession of the Union forces. They made their way safely and quietly through thirty miles of Rebel territory, expecting to find freedom under the protection of our flag. Whether they had or had not heard of the passage of the Confiscation Act, they reasoned logically that we could not kill them for deserting the service of their lifelong oppressors, who had through treason become our implacable enemies. They came to us for liberty and protection, for which they were willing render their best service: they met with hostility, captivity, and murder. The barking of the base curs of Slavery in this quarter deceives no one--not even themselves. They say, indeed, that the negroes had no right to appear in New Orleans armed (with their implements of daily labor in the cane-field); but no one doubts that they would gladly have laid these down if assured that they should be free. They were set upon and maimed, captured and killed, because they sought the benefit of that act of Congress which they may not specifically have heard of, but which was none the less the law of the land which they had a clear right to the benefit of--which it was somebody's duty to publish far and wide, in order that so many as possible should be impelled to desist from serving Rebels and the Rebellion and come over to the side of the Union, They sought their liberty in strict accordance with the law of the land--they were butchered or re-enslaved for so doing by the help of Union soldiers enlisted to fight against slaveholding Treason. It was somebody's fault that they were so murdered--if others shall hereafter stuffer in like manner, in default of explicit and public directions to your generals that they are to recognize and obey the Confiscation Act, the world will lay the blame on you. Whether you will choose to hear it through future History and 'at the bar of God, I will not judge. I can only hope.”

Horace Greeley (1811–1872) American politician and publisher

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

Men , God , Hostility , World

“Suppose the reasoning centers of the brain can get their hands on the mechanisms that plop shapes into the array and that read their locations out of it. Those reasoning demons can exploit the geometry of the array as a surrogate for keeping certain logical constraints in mind. Wealth, like location on a line, is transitive: if A is richer than B, and B is richer than C, then A is richer than C. By using location in an image to symbolize wealth, the thinker takes advantage of the transitivity of location built into the array, and does not have to enter it into a chain of deductive steps. The problem becomes a matter of plop down and look up. It is a fine example of how the form of a mental representation determines what is easy or hard to think.”

Steven Pinker book How the Mind Works

Source: How the Mind Works (1997), p. 291

Problem , Thinking , Reading , Wealth

“Since reasoning, or inference, the principal subject of logic, is an operation which usually takes place by means of words, and in complicated cases can take place in no other way: those who have not a thorough insight into both the signification and purpose of words, will be under chances, amounting almost to certainty, of reasoning or inferring incorrectly.”

John Stuart Mill book A System of Logic

Source: A System of Logic (1843), p. 11: Cited in Gaines (1976) "Foundations of fuzzy reasoning" in: International Journal of Man-Machine Studies 8(6), p. 623

Way , Chance

“I am a plain practical man, not one of your theorists and splitters of hairs and choppers of logic.”

James Frazer book The Golden Bough

Source: The Golden Bough (1890), Chapter 4, Magic and Religion.

“The abhorrent acts in the prison were a direct consequence of the culture of impunity encouraged, authorized and instituted by Bush and Rumsfeld in their statements that the Geneva Conventions did not apply. The apparent war crimes that took place were the logical, inevitable outcome of policies and statements from the administration.
To me, as glaring as the evidence of this in the pictures themselves was the revelation that it was established practice for prisoners to be moved around during ICRC visits so that they would not be available for visits. That, no one can claim, was the act of individuals. That was policy set from above with the direct intention to violate US values it was to be upholding. It was the kind of policy we see — and criticize in places like China and Cuba.”

Al Gore (1948) 45th Vice President of the United States

Quotes, NYU Speech (2004)

War

“The subversive character of truth inflicts upon thought an imperative quality. Logic centers on judgments which are, as demonstrative propositions, imperatives, — the predicative “is” implies an “ought.” … Verification of the proposition involves a process in fact as well as in thought: (S) must become that which it is. The categorical statement thus turns into a categorical imperative; it does not state a fact but the necessity to bring about a fact. For example, it could be read as follows: man is not (in fact) free, endowed with inalienable rights, etc., but he ought to be.”

Herbert Marcuse book One-Dimensional Man

Source: One-Dimensional Man (1964), pp. 132-133

Truth , Reading

“.. and wanting to force nature to say things, making trees twist and rocks frown, as Gustave Doré does, or even painting it like Leornardo da Vinci, that's literature too. There's logic of colour, damn it all! The painter owes allegiance to that alone. Never to the logic of the brain; if he abandons himself to that logic, he's lost... Painting is first and foremost an optical affair. The stuff of our art is there, in what our eyes are thinking... If you respect nature, it will always unravel its meaning for you.”

Paul Cézanne (1839–1906) French painter

Source: Quotes of Paul Cezanne, after 1900, Cézanne, - a Memoir with Conversations, (1897 - 1906), p. 161, in: 'What he told me – I. The motif'

Art , Literature , Nature , Thinking

“Enterprise architecture is the organizing logic for business processes and IT infrastructure reflecting the integration and standardization requirements of a company's operation model… The key to effective enterprise architecture is to identify the processes, data, technology, and customer interfaces that take the operating model from vision to reality.”

Jeanne W. Ross (1958) American computer scientist

Source: Enterprise architecture as strategy, 2006, p. 47

Business , Reality

“We do not know nature; causes hidden in her breast might have produced everything. In your turn, observe the polyp of Trembley: does it not contain in itself the causes which bring about regeneration? Why then would it be absurd to think that there are physical causes by reason of which everything has been made, and to which the whole chain of this vast universe is so necessarily bound and held that, nothing which happens, could have failed to happen,—causes, of which we are so invincibly ignorant that we have had recourse to a God, who, as some aver, is not so much as a logical entity? Thus to destroy chance is not to prove the existence of a supreme being, since there may be some other thing which is neither chance nor God—I mean, nature. It follows that the study of nature can make only unbelievers; and the way of thinking of all its more successful investigators proves this.”

Denis Diderot (1713–1784) French Enlightenment philosopher and encyclopædist

As quoted by Julien Offray de La Mettrie, Man a Machine (1747) Tr. Gertrude Carman Bussey https://books.google.com/books?id=GKYLAQAAIAAJ&pg=PA125 (1912)
Pensées Philosophiques (1746)

God , Way , Nature , Thinking

“.. the classical aesthetic offers us at the same time a method of thinking and a method of wanting to be, a moral and at the same time a psychology... The classical tradition as a whole, by the logic of the effort and the greatness of results, is in some way parallel with the religious tradition of humanity.”

Maurice Denis (1870–1943) French painter

Quote from Denis's essay 'Les Arts a Rome', 1898; as cited on Wikipedia: Maurice Denis https://en.wikipedia.org/wiki/Maurice_Denis - reference [22]
Denis made Jan. 1895 his first visit to Rome, where the works of Raphael and Michaelangelo in the Vatican made a strong impression upon him.
1890 - 1920

Way , Thinking , Effort , Time

“The purpose of scientific enquiry is not to compile an inventory of factual information, nor to build up a totalitarian world picture of natural Laws in which every event that is not compulsory is forbidden. We should think of it rather as a logically articulated structure of justifiable beliefs about nature.”

Peter Medawar (1915–1987) scientist

Induction and Intuition in Scientific Thought, 1969
1960s

World , Law , Nature , Thinking

“It seems that extremists on both sides are determined to maintain the state of hostility and hatred between the two states, but logic says that there should be a change of direction in order to turn a new page in this unstable relationship and minimise the state of hostility and mistrust between the two countries.”

Hassan Rouhani (1948) 7th President of Islamic Republic of Iran

Presidential campaign, 2013

Hostility , Change , Country

“Modern positivism…expresses criticism against the naïve use of certain terms… by the general postulate that the question whether a given sentence has any meaning… should always be thoroughly and critically examined. This… is derived from mathematical logic. The procedure of natural science is pictured as an attachment of symbols to the phenomena. The symbols can, as in mathematics, be combined according to certain rules… However, a combination of symbols that does not comply with the rules is not wrong but conveys no meaning.
The obvious difficulty in this argument is the lack of any general criterion as to when a sentence should be considered meaningless. A definite decision is possible only when the sentence belongs to a closed system of concepts and axioms, which in the development of natural science will be rather the exception than the rule. In some case the conjecture that a certain sentence is meaningless has historically led to important progress… new connections which would have been impossible if the sentence had a meaning. An example… sentence: "In which orbit does the electron move around the nucleus?"”

Werner Heisenberg (1901–1976) German theoretical physicist

But generally the positivistic scheme taken from mathematical logic is too narrow in a description of nature which necessarily uses words and concepts that are only vaguely defined.
Physics and Philosophy (1958)

Mathematics , Question , Nature , Decision

“Trying to understand the brain's abilities leads to philosophical difliculties. Penrose (1994) argues that the task is sterile and that science, including neural networks, has not yet advanced to the stage where it can explain conscious thought. At the other extreme there are philosophers such as Fodor (1975) who believed that thought has language-like properties and can be analysed in the same logical way as one can anlayse the structure of language.”

Igor Aleksander (1937) scientist

Source: An introduction to neural computing (1990), p. 242

Way , Understanding , Science

“That is to say that every single book will be magnetized, will be ordered under complicated mathematical clusters, by related subjects, and semantic markers. You will state your questions, or the subject you are interested in, and the computer will find the books for you. Instataneous retrieval brings with it enormous changes in our relation to the history of a subject, because there is a cut-off point in all these systems beond which the previous books are no longer relevant. They have been adequately subsumed in the later ones. You have a completely different way of organsing knowledge—an immensely efficient and in many ways powerfully logical way, but which blocks the essential motion of the hand reaching along a shelf and stumbling on what it did not know was there. When these great knowledge and data-banks, as they are called, are operative there will come a whole change in the way the human mind and eye live with books.”

George Steiner (1929–2020) American writer

Do Books Matter? (ed. Brian Baumfield), ISBN 0705700143, p. 28.
Do Books Matter?

Books , Way , History , Mathematics

“It’s a big coincidence. It’s something we can’t explain. But as far as we know that’s all it is. And if it isn’t, we’ll only find out by discovering more facts, not speculating, no matter how logical that speculation might seem. The way to learn the world is to look at the world.”

Ken MacLeod book Learning the World

Source: Learning the World (2005), Chapter 9 “Red Sun Circle” (p. 148)

World , Way , Learning

“Formal logic and the logical syllogism encapsulate connectedness in reasoning.”

Marshall McLuhan (1911–1980) Canadian educator, philosopher, and scholar-- a professor of English literature, a literary critic, and a …

1980s, Laws of Media: The New Science (with Eric McLuhan) (1988)

“What seems certain is that Pythagoras developed the idea of mathematical logic… He realized that numbers exist independently of the tangible world and therefore their study was untainted by inaccuracies of perception. This meant he could discover truths which were independent of opinion of prejudice and which were more absolute then any previous knowledge.”

Simon Singh (1964) British author

Fermat's Last Theorem (1997)

Truth , World , Mathematics , Idea

“The world was created by God and we are always to remember as we deal with the world, what was God’s purpose here, in creating this? But at the same time, while the world was created essentially good, it is fallen and not normative. Thus, perfectionism with regard to nature is anti Christian. Everything has a purpose in creation, but God created man and set him in the garden of Eden with a purpose to use and to develop nature. Thus, while hybridization is forbidden, the improvement of various species is definitely a part of our responsibility. Thus, we do not look back to Eden, we look forward to the kingdom of God. Those who hold to a perfectionism with regard to nature are anti Christian. The logic of this perfectionism with regard to nature, holding nature as normative is to eat raw foods only because you can’t improve on nature, it is to be a nudist because you can’t improve on nature, it is to deny housing because housing is an improvement on nature. This is all very very definitely hostile to scripture because while creation is essentially good, from the biblical perspective, it is to be developed by man. There is to be an improvement in terms of the guidelines laid down by God. Thus, hybridization is not Christian, but improvement is definitely the Christian responsibility. Hybridization and unequal yoking involve a fundamental disrespect for God’s handiwork, and it leads to futile experimentation. But for us as creationists, the fertility and the potentiality of the world rests in his law, in it’s pattern, in it’s fixity.”

Rousas John Rushdoony (1916–2001) American theologian

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

God , Hostility , World , Law

“Science is turning into a monastery for the Order of Capitulant Friars. Logical calculus is supposed to supersede man as moralist. We submit to the blackmail of the "superior knowledge" that has the temerity to assert that nuclear war can be, by derivation, a good thing, because this follows from simple arithmetic.”

Stanisław Lem book His Master's Voice

Source: His Master's Voice (1968), Ch. 9

War , Knowledge , Science

“If mankind had always been logical and wise, history would not be a long chronicle of folly and crime.”

James Frazer book The Golden Bough

Source: The Golden Bough (1890), Chapter 29, The Myth of Adonis

History

“We are still living under the reign of logic: this, of course, is what I have been driving at. But in this day and age logical methods are applicable only to solving problems of secondary interest. The absolute rationalism that is still in vogue allows us to consider only facts relating directly to our experience. Logical ends, on the contrary, escape us. It is pointless to add that experience itself has found itself increasingly circumscribed. It paces back and forth in a cage from which it is more and more difficult to make it emerge. It too leans for support on what is most immediately expedient, and it is protected by the sentinels of common sense.”

André Breton (1896–1966) French writer

Le Manifeste du Surréalisme, Andre Breton (Manifesto of Surrealism; 1924)

Age , Support , Problem , Sense

“Nevertheless it is evident — if only from the Greek example just cited — that proto-nationalism, where it existed, made the task of nationalism easier, however great the differences between the two, insofar as existing symbols and sentiments of proto-national community could he mobilized behind a modern cause or a modern state. But this is far from saying that the two were the same, or even that one must logically or inevitably lead into the other. For it is evident that proto-nationalism alone is clearly not enough to form nationalities, nations, let alone states.”

Eric Hobsbawm (1917–2012) British academic historian and Marxist historiographer

Source: Nations and nationalism since 1780 programme, myth, reality (1992), pp. 76–77.

Communication

“It seems, you expect from me an expression of my views on the specific question: What type of missionary workers are wanted in India, rather than on the question whether any missionary workers should come at all to India? I shall respectfully speak my opinion on the latter point. I feel it is not really possible on the ground of logic or on the evidence of miracles to hold that amongst the religions known as Hinduism, Buddhism, Islam, and Christianity, anyone is nearer the truth than any other. You will permit me to object to the exclusive claims for Truth made on behalf of any one of these faiths. If this my first point is granted, the only justification for missionary work is proselytism. But is it good on the whole for men and women to change from one religion to another? I think it is not desirable to make any effort at proselytism. I feel that such efforts undermine the present faith of the people, which is good enough for promoting right conduct in them and to deter them from sin. They tend to destroy family and social harmony, which is not a good thing to do.”

C. Rajagopalachari (1878–1972) Political leader

The National Christian Council Review, December 1956, p. 490. quoted from Madhya Pradesh (India), Goel, S. R., Niyogi, M. B. (1998). Vindicated by time: The Niyogi Committee report on Christian missionary activities. ISBN 9789385485121

Women , Men , People , Truth

“The instincts of man are so earth-bound that they shrewdly sense it whenever the approach of logic threatens them.”

William Barrett (philosopher) book Irrational Man: A Study in Existential Philosophy

Source: Irrational Man: A Study in Existential Philosophy (1958), Chapter Five, Christian sources, p. 87

Sense

“Logic aims to instruct the human mind as to its own nature and processes; it will lay bare the interior working of our mind for our guidance. The object of the study of logic is thought, its nature, and its proper classification.”

Joseph Dietzgen (1828–1888) german philosopher

Letter 2
Letters on Logic: Especially Democratic-Proletarian Logic (1906)

Nature , Study

“Is A=A useful? Does logic come in handy? Is math a magnificent symbolic system with which to comprehend what's around us? And is math based on A=A? Yes. Absolutely. But math and logic are… very, very simplified representations.”

Howard Bloom (1943) American publicist and author

When a Frog is a River? Aristotle Wrestles Heraclitus
The God Problem: How a Godless Cosmos Creates (2012)

“It may be remarked incidentally that the recognition of the relational character of scientific objects completely eliminates an old metaphysical issue. One of the outstanding problems created by the rise of modern science was due to the fact that scientific definitions and descriptions are framed in terms of which qualities play no part. Qualities were wholly superfluous. As long as the idea persisted (an inheritance from Greek metaphysical science) that the business of knowledge is to penetrate into the inner being of objects, the existence of qualities like colors, sounds, etc., was embarrassing. The usual way of dealing with them is to declare that they are merely subjective, existing only in the consciousness of individual knowers. Given the old idea that the purpose of knowledge (represented at its best in science) is to penetrate into the heart of reality and reveal its "true" nature, the conclusion was a logical one. …The discovery of the nonscientific because of the empirically unverifiable and unnecessary character of absolute space, absolute motion, and absolute time gave the final coup de grâce to the traditional idea that solidity, mass, size, etc., are inherent possessions of ultimate individuals.”

John Dewey (1859–1952) American philosopher, psychologist, and educational reformer

Time and Individuality (1940)

Color , Way , Idea , Business

“The two great conceptual revolutions of twentieth-century science, the overturning of classical physics by Werner Heisenberg and the overturning of the foundations of mathematics by Kurt Gödel, occurred within six years of each other within the narrow boundaries of German-speaking Europe. … A study of the historical background of German intellectual life in the 1920s reveals strong links between them. Physicists and mathematicians were exposed simultaneously to external influences that pushed them along parallel paths. … Two people who came early and strongly under the influence of Spengler's philosophy were the mathematician Hermann Weyl and the physicist Erwin Schrödinger. … Weyl and Schrödinger agreed with Spengler that the coming revolution would sweep away the principle of physical causality. The erstwhile revolutionaries David Hilbert and Albert Einstein found themselves in the unaccustomed role of defenders of the status quo, Hilbert defending the primacy of formal logic in the foundations of mathematics, Einstein defending the primacy of causality in physics. In the short run, Hilbert and Einstein were defeated and the Spenglerian ideology of revolution triumphed, both in physics and in mathematics. Heisenberg discovered the true limits of causality in atomic processes, and Gödel discovered the limits of formal deduction and proof in mathematics. And, as often happens in the history of intellectual revolutions, the achievement of revolutionary goals destroyed the revolutionary ideology that gave them birth. The visions of Spengler, having served their purpose, rapidly became irrelevant.”

Freeman Dyson (1923) theoretical physicist and mathematician

The Scientist As Rebel (2006)

Life , People , History , Mathematics

“There have been articles lately asking why the United States is so hated in some parts of the world. As this week's Exhibit A from Hollywood, I offer Zoolander, a comedy about a plot to assassinate the prime minister of Malaysia because of his opposition to child labor. You might want to read that sentence twice. The logic: Child labor is necessary to the economic health of the fashion industry, and so its opponents must be eliminated…if the Malaysians made a comedy about the assassination of the president of the United States because of his opposition to slavery, it would seem approximately as funny to us as Zoolander would seem to them.”

Roger Ebert (1942–2013) American film critic, author, journalist, and TV presenter

Review http://www.rogerebert.com/reviews/zoolander-2001 of Zoolander (28 September 2001)
Reviews, One-star reviews

Hate , Health , World , Fashion

“The logic of governmental power is to exercise it such that Republicans can talk "Terrific free market!" language until they actually have power. Where upon, its program after program and crony after crony. The extraordinary bailout occurred under the Bush administration. I think that raises extraordinary dangers of the fact that as power accumulates, it never gives anything back. Its always expanding.”

Alan Charles Kors (1943) American academic

2010s, Socialism's Legacy (2011), Q&A

Exercises , Thinking

“The mental operation by which one achieves new concepts and which one denotes generally by the inadequate name of induction is not a simple but rather a very complicated process. Above all, it is not a logical process although such processes can be inserted as intermediary and auxiliary links. The principle effort that leads to the discovery of new knowledge is due to abstraction and imagination.”

Ernst Mach (1838–1916) Austrian physicist and university educator

3rd edition, p. 318ff, As quoted by Phillip Frank, Philosophy of Science: The Link Between Science and Philosophy (1957)
20th century, "Erkenntnis und Irrtum: Skizzen zur Psychologie der Forschung" (1905)

Imagination , Knowledge , Effort

“We have for a long time hesitated to adopt and carry out the only principle which can solve that difficulty and give peace, strength and security to the republic, and that is the principle of absolute equality. We are a country of all extremes, ends and opposites. The most conspicuous example of composite nationality in the world. Our people defy all the ethnological and logical classifications. In races we range all the way from black to white, with intermediate shades which, as in the apocalyptic vision, no man can name or number.”

Frederick Douglass (1818–1895) American social reformer, orator, writer and statesman

1860s, Our Composite Nationality (1869)

People , World , Peace , Way

“The Grape that can with Logic absolute
The Two-and-Seventy jarring Sects confute:
The sovereign Alchemist that in a trice
Life's leaden metal into Gold transmute:”

Omar Khayyám (1048–1131) Persian poet, philosopher, mathematician, and astronomer

The Rubaiyat (1120)

Life

“The church … is always at the service of the political power that is either in place or in course of being installed. It goes on to serve the Holy Roman Empire but also the kings of France who split off from it. It will bless all the monarchs who seize power in ways that are tragic, tempestuous, and often bloody and unjust.. It legitimizes everything. This is logical once it associates itself with the existing power.”

Jacques Ellul (1912–1994) French sociologist, technology critic, and Christian anarchist

Source: The Subversion of Christianity (1984), p. 125

Way

“As for a few others, the vital task was a wedding of abstraction and surrealism. Out of these opposites something new could emerge, and Gorky’s work is a part of the evidence that this is true. What he felt, I suppose, was a sense of polarity, not of dichotomy; that opposites could exist simultaneously within a body, within a painting or within an entire art... These are the opposites poles in his work. Logic and irrationality; violence and gentleness; happiness and sadness, surrealism and abstraction. Out of these elements I think Gorky evolved his style.”

Adolph Gottlieb (1903–1974) American artist

Arshile Gorky Adolph Gottlieb in exhibition catalogue Kootz Gallery New York, 1950; as quoted in Abstract Painting in America, W.C, Seitz p. 104.
1950s

Sadness , Art , Thinking , Sense

“A Christian will consider a tyrannical person bossing a city brutally a lesser evil than a whole city lynching one man. In the first case there is one sinner and thousands of sufferers, in the latter case thousands of sinners and one sufferer. The materialist will look at the problem the other way round. He is never interested in sin, but as a humanitarian only in suffering. His final logical conclusion is euthanasia and the sacrifice of individuals to the whim of the masses.”

Erik von Kuehnelt-Leddihn (1909–1999) Austrian noble and political theorist

Pg 104n
The Menace of the Herd (1943)

Way , Problem , Suffering , Evil

“Implication is thus the very texture of our web of belief, and logic is the theory that traces it.”

Willard van Orman Quine (1908–2000) American philosopher and logician

S. 41
The Web of Belief (1970)

“The construction of hypotheses is a creative act of inspiration, intuition, invention; its essence is the vision of something new in familiar material. The process must be discussed in psychological, not logical, categories; studied in autobiographies and biographies, not treatises on scientific method; and promoted by maxim and example, not syllogism or theorem.”

Milton Friedman (1912–2006) American economist, statistician, and writer

"The Methodology of Positive Economics" (1953)

Study

“[I]f texts are unified by a central logic of argument, then their pictorial illustrations are integral to the ensemble, not pretty little trifles included only for aesthetic or commercial value. Primates are visual animals, and (particularly in science) illustration has a language and set of conventions all its own.”

Stephen Jay Gould book Time's Arrow, Time's Cycle

Source: Time's Arrow, Time's Cycle (1987), p. 18

Science , Animals

“Mature cognitions of folkpsychology and agency include metarepresentation. This involves the ability to track and build a notion of self over time, to model other minds and worlds, and to represent beliefs about the actual world as being true or false. It also makes lying and deception possible. This threatens any social order. But this same metarepresentational capacity provides the hope and promise of open-ended solutions to problems of moral relativity. It does so by enabling people to conjure up counterintuitive supernatural worlds that cannot be verified or falsified, either logically or empirically. Religious beliefs minimally violate ordinary intuitions about the world, with its inescapable problems, such as death. This frees people to imagine minimally impossible worlds that seem to solve existential dilemmas, including death and deception.”

Scott Atran (1952) Anthropologist

Introduction: an evolutionary riddle, p. 15
In Gods We Trust: The Evolutionary Landscape of Religion (2002)

Death , People , World , Hope

“How about,” she said, “that you do the logical thing because it’s the logical thing to do?”

Dan Simmons book Hyperion

Source: Hyperion (1989), Chapter 5 (p. 315)

“If the progressing rationality of advanced industrial society tends to liquidate, as an “irrational rest,” the disturbing elements of Time and Memory, it also tends to liquidate the disturbing rationality contained in this irrational rest. Recognition and relation to the past as present counteracts the functionalization of thought by and in the established reality. It militates against the closing of the universe of discourse and behavior it renders possible the development of concepts which destabilize and transcend the closed universe by comprehending it as historical universe. Confronted with the given society as object of its reflection, critical thought becomes historical consciousness as such, it is essentially judgment. Far from necessitating an indifferent relativism, it searches in the real history of man for the criteria of truth and falsehood, progress and regression. The mediation of the past with the present discovers the factors which made the facts, which determined the war of life, which established the masters and the servants; it projects the limits and the alternatives. When this critical consciousness speaks, it speaks “le langage de la connaissance” (Roland Barthes) which breaks open a closed universe of discourse and its petrified structure. The key terms of this language are not hypnotic nouns which evoke endlessly the same frozen predicates. They rather allow of an open development; they even unfold their content in contradictory predicates. The Communist Manifesto provides a classical example. Here the two key terms, Bourgeoisie and Proletariat, each “govern” contrary predicates. The “bourgeoisie” is the subject of technical progress, liberation, conquest of nature, creation of social wealth, and of the perversion and destruction of these achievements. Similarly, the "proletariat” carries the attributes of total oppression and of the total defeat of oppression. Such dialectical relation of opposites in and by the proposition is rendered possible by the recognition of the subject as an historical agent whose identity constitutes itself in and against its historical practice, in and against its social reality. The discourse develops and states the conflict between the thing and its function, and this conflict finds linguistic expression in sentences which join contradictory predicates in a logical unit—conceptual counterpart of the objective reality. In contrast to all Orwellian language, the contradiction is demonstrated, made explicit, explained, and denounced.”

Herbert Marcuse book One-Dimensional Man

Source: One-Dimensional Man (1964), p. 99-100

Life , War , Truth , Behavior

“I really have no claim to rank myself among fatalistic, materialistic, or atheistic philosophers. Not among fatalists, for I take the conception of necessity to have a logical, and not a physical foundation; not among materialists, for I am utterly incapable of conceiving the existence of matter if there is no mind in which to picture that existence; not among atheists, for the problem of the ultimate cause of existence is one which seems to me to be hopelessly out of reach of my poor powers. Of all the senseless babble I have ever had occasion to read, the demonstrations of these philosophers who undertake to tell us all about the nature of God would be the worst, if they were not surpassed by the still greater absurdities of the philosophers who try to prove that there is no God.”

Thomas Henry Huxley (1825–1895) English biologist and comparative anatomist

1870s, On the Hypothesis that Animals are Automata, and Its History (1874)

God , Nature , Problem , Reading

“The Protestant churches generally hold that the elements of the sacrament are flesh and blood only in a tropical sense; they nourish our souls as meat and the juice of it would our bodies. But the Catholics maintain that they are literally just that; although they possess all the sensible qualities of wafer-cakes and diluted wine. But we can have no conception of wine except what may enter into a belief, either —
# That this, that, or the other, is wine; or,
# That wine possesses certain properties.
Such beliefs are nothing but self-notifications that we should, upon occasion, act in regard to such things as we believe to be wine according to the qualities which we believe wine to possess. The occasion of such action would be some sensible perception, the motive of it to produce some sensible result. Thus our action has exclusive reference to what affects the senses, our habit has the same bearing as our action, our belief the same as our habit, our conception the same as our belief; and we can consequently mean nothing by wine but what has certain effects, direct or indirect, upon our senses; and to talk of something as having all the sensible characters of wine, yet being in reality blood, is senseless jargon. Now, it is not my object to pursue the theological question; and having used it as a logical example I drop it, without caring to anticipate the theologian's reply. I only desire to point out how impossible it is that we should have an idea in our minds which relates to anything but conceived sensible effects of things. Our idea of anything is our idea of its sensible effects; and if we fancy that we have any other we deceive ourselves, and mistake a mere sensation accompanying the thought for a part of the thought itself. It is absurd to say that thought has any meaning unrelated to its only function. It is foolish for Catholics and Protestants to fancy themselves in disagreement about the elements of the sacrament, if they agree in regard to all their sensible effects, here or hereafter.
It appears, then, that the rule for attaining the third grade of clearness of apprehension is as follows: Consider what effects, which might conceivably have practical bearings, we conceive the object of our conception to have. Then, our conception of these effects is the whole of our conception of the object.”

Charles Sanders Peirce (1839–1914) American philosopher, logician, mathematician, and scientist

The final sentence here is an expression of what became known as the Pragmatic maxim, first published in "Illustrations of the Logic of Science" in Popular Science Monthly, Vol. 12 (January 1878), p. 286

Soul , Motivation , Idea , Question

“If time is treated in modern physics as a dimension on a par with the dimensions of space, why should we a priori exclude the possibility that we are pulled as well as pushed along its axis? The future has, after all, as much or as little reality as the past, and there is nothing logically inconceivable in introducing, as a working hypothesis, an element of finality, supplementary to the element of causality, into our equations. It betrays a great lack of imagination to believe that the concept of "purpose" must necessarily be associated with some anthropomorphic deity.”

Arthur Koestler (1905–1983) Hungarian-British author and journalist

Epilogue
The Sleepwalkers: A History of Man's Changing Vision of the Universe (1959)

Imagination , Reality , Time , Past

“If there’s any comparison between the compassion and decency of the American people and the terrorist tactics of extremists, it’s flawed logic. It’s just — I simply can’t accept that. It’s unacceptable to think that there’s any kind of comparison between the behavior of the United States of America and the action of Islamic extremists who kill innocent women and children to achieve an objective.”

George W. Bush (1946) 43rd President of the United States

Press Conference http://georgewbush-whitehouse.archives.gov/news/releases/2006/09/20060915-2.html (September 15, 2006)
2000s, 2006

Women , Children , People , Behavior

“It is dangerous to attach probability zero to anything other than a logical impossibility.”

Dennis Lindley (1923–2013) British statistician

5. The Rules of Probability. p. 64.
Understanding Uncertainty (2006)

“I think that I have succeeded in making it clear that this doctrine gives room for explanations of many facts which without it are absolutely and hopelessly inexplicable; and further that it carries along with it the following doctrines: first, a logical realism of the most pronounced type; second, objective idealism; third, tychism, with its consequent thoroughgoing evolutionism. We also notice that the doctrine presents no hindrences to spiritual influences, such as some philosophies are felt to do.”

Charles Sanders Peirce (1839–1914) American philosopher, logician, mathematician, and scientist

The Law of Mind (1892)

Thinking

“Lincoln was not eloquent in the usual 19th century way, certainly not in the romantic way. He was not a man of frothing at the mouth or shaking his fist in a dramatic way. Lincoln was logic, and when he got the hook in your mouth he would pull you in no matter how much line was involved. One observer of the Lincoln-Douglas debates said that if you listened to Lincoln and Douglas for five minutes, you would go with Douglas. If you listened to them for an hour you always went with Lincoln.”

Allen C. Guelzo (1953) American historian

2010s, Interview with Tom Mackaman (2013)

Way

“.. [to gather] under a new banner.... [that the poets of yesterday's Futurism ] change the means of battle with thought, content, and logic.... advance Alogism after Futurism.”

Kazimir Malevich (1879–1935) Russian and Soviet artist of polish descent

Quote of Malevich, Nov. 1915; as cited by Vasilii Rakitin, in The great Utopia - The Russian and Soviet Avant-Garde, 1915-1932; Guggenheim Museum, New York, 1992, p. 26
1910 - 1920

Change , Future

“I think of Abstract Art in the same way I think of all Art, Past and Present. I see it as divided into two Major categories, Objective and Subjective. Objective Art is Absolute Art. Subjective Art is Illustration, or communication by Symbols, Replicas, and Oblique Emotional Passes. They are both Art, but their Content has no Identity. Their difference cannot be defined as a difference of Idiom, because all Paintings have the Laws of Design as a common denominator. Design exists as an Idiom of Color-Space Logic, and it also exists in an Idiom of Representational Likenesses. Objective Art and Subjective Art exist in both Idioms. Their difference can only be defined in terms of what the Artist thinks his Purpose means-its Content as a Design Image.”

Stuart Davis (1892–1964) American painter

Source: George L. K. Morris, Willem De Kooning, Alexander Calder, Fritz Glarner, Robert Motherwell, Stuart Davis. " What Abstract Art Means to Me http://www.jstor.org/stable/4058250," in: The Bulletin of the Museum of Modern Art, Vol. 18, No. 3, (Spring, 1951), pp. 2-15

Law , Art , Color , Way

“An idea starts to be interesting when you get scared of taking it to its logical conclusion.”

Nassim Nicholas Taleb book The Bed of Procrustes: Philosophical and Practical Aphorisms

Source: The Bed of Procrustes: Philosophical and Practical Aphorisms (2010), p. 3

Idea

“I was introduced to the great philosophical systems of the past to which the Western universities have given their blessing, arranging and classifying them with the delicate care lavished on museum pieces. When once these systems were so handled, it was natural that they should be regarded as monuments of human intellection. And monuments, because they mark achievements at their particular point in history, soon become conservative in the impression which they make on posterity. I was introduced to Plato, Aristotle, Descartes, Kant, Hegel, Schopenhauer, Nietzsche, Marx and other immortals, to whom I should like to refer as the university philosophers. But these titans were expounded in such a way that a student from a colony could easily find his breast agitated by Conflicting attitudes. These attitudes can have effects which spread out over a whole society, should such a student finally pursue a political life. A colonial student does not by origin belong to the intellectual history in which the university philosophers are such impressive landmarks. The colonial student can be so seduced by these attempts to give a philosophical account of the universe, that surrenders his whole personality to them. When he does this, he loses sight of the fundamental social fact that he is a colonial subject. In this way, he omits to draw from his education and from the concern displayed by the great philosophers for human problems, anything which he might relate to the very real problem of colonial domination, which, as it happens, conditions the immediate life of every colonized African. With single-minded devotion, the colonial student meanders through the intricacies of the philosophical systems. And yet these systems did aim at providing a philosophical account ofthe world in the circumstances and conditions of their time. For even philosophical systems are facts of history. By the time, however, that they come to be accepted in the universities for exposition, they have lost the vital power which they had at their first statement, they have shed their dynamism and polemic reference. This is a result of the academic treatment which they are given. The academic treatment is the result of an attitude to philosophical systems as though there was nothing to them hut statements standing in logical relation to one another. This defective approach to scholarship was suffered hy different categories of colonial student. Many of them had heen handpicked and, so to say, carried certificates ofworthiness with them. These were considered fit to become enlightened servants of the colonial administration. The process by which this category of student became fit usually started at an early age, for not infrequently they had lost contact early in life with their traditional background. By reason of their lack of contact with their own roots, they became prone to accept some theory of universalism, provided it was expressed in vague, mellifluous terms. Armed with their universalism, they carried away from their university courses an attitude entirely at variance with the concrete reality of their people and their struggle. When they came across doctrines of a combative nature, like those of Marxism, they reduced them to arid abstractions, to common-room subtleties. In this way, through the good graces oftheir colonialist patrons, these students, now competent in the art of forming not a concrete environmental view of social political problems, but an abstract, 'liberal' outlook, began to fulfil the hopes and expectations oftheir guides and guardians.”

Kwame Nkrumah (1909–1972) Pan Africanist and First Prime Minister and President of Ghana

Source: Consciencism (1964), Introduction, pp. 2-4.

Life , People , Age , World

“Economic logic requires that we maximize the productivity of the limiting factor in the short run, and invest in increasing its supply in the long run. When the limiting factor changes, then behavior that used to be economic becomes uneconomic. Economic logic remains the same, but the pattern of scarcity in the world changes, with the result that behavior must change if it is to remain economic. Instead of maximizing returns to and investing in man-made capital (as was appropriate in an empty world), we must now maximize returns to and invest in natural capital (as is appropriate in a full world). This is not “new economics,” but new behavior consistent with “old economics” in a world with a new pattern of scarcity.”

Herman E. Daly (1938) American economist

Herman E. Daly (1994) in: AnnMari Jansson. Investing in Natural Capital: The Ecological Economics Approach To Sustainability. 1994. p. 24

World , Behavior , Nature , Change

“[Oddly enough, Putnam believes part of the attraction of some of these formalisms is their obscurity]. "I think part of the appeal of mathematical logic is that the formulas look mysterious - you write backward Es!"”

Hilary Putnam (1926–2016) American philosopher

Putnam as quoted in: Julian Baggini, Jeremy Stangroom (2005) What Philosophers Think. p. 233

Mathematics , Thinking , Parting

“Emancipation, not colonization, was the real goal to which the logic of the American Founding was driving the nation.”

Allen C. Guelzo (1953) American historian

2010s, The Logic of Liberty (2014)

“It is with logic as it is with other sciences. They draw wisdom from the mysterious source of plain experience. Agriculture, e. g., aims to teach the farmer how to cultivate the soil; but fields were tilled long before any agricultural college had begun its lectures. In the same way human beings think without ever having heard of logic. But by practice they improve their innate faculty of thought, they make progress, they gradually learn to make better use of it. Finally, just as the farmer arrives at the science of agriculture, so the thinker arrives at logic, acquires a clear consciousness of his faculty of thought and a professional dexterity in applying it.”

Joseph Dietzgen (1828–1888) german philosopher

Letter 2
Letters on Logic: Especially Democratic-Proletarian Logic (1906)

Wisdom , Way , Thinking , Learning

“Logic works, metaphysics contemplates.”

Joseph Joubert (1754–1824) French moralist and essayist

“Is it possible this triviality is a code of some sort? the Brain wondered. But how could it be … unless there's more to these emotional inconsequentials and this talk of a God than appears on the surface?
The Brain had begun its career in logics as a pragmatic atheist. Now doubts began to creep into its computations, and it classified doubt as an emotion.”

Frank Herbert book The Green Brain

The Green Brain (1966)

God , Appearance

“As a science mathematics has been adapted to the description of natural phenomena, and the great practitioners in this field… have never concerned themselves with the logical foundations of mathematics, but have boldly taken a pragmatic view of mathematics as an intellectual machine which works successfully. Description has been verified by further observation, still more strikingly be prediction, and sometimes, more ominously, by control of natural forces. Happily, unresolved problems… still remain as challenges.”

George Frederick James Temple (1901–1992) British mathematician

100 Years of Mathematics: a Personal Viewpoint (1981)

Mathematics , Nature , Problem , Science

“Research is something that everyone can do, and everyone ought to do. It is simply collecting information and thinking systematically about it. The word ‘research’ carries overtones of abstruse statistics and complex methods, white coats and computers. Some social research is highly specialised but most is not; much of the best research is logically very straightforward. Useful research on many problems can be done with small resources, and should be a regular part of the life of any thoughtful person involved in social action.”

Raewyn Connell (1944) Australian sociologist

Raewyn Connell et al. (1975). How to do small surveys – a guide for students in sociology, kindred industries and allied trades. School of Social Sciences. Flinders University. p. 1.

Life , Problem , Thinking , Parting