Sadhguru book Inner Engineering: A Yogi's Guide to Joy
Source: Inner Engineering: A Yogi's Guide to Joy
A collection of quotes on the topic of logic, use, other, reason.
Sadhguru book Inner Engineering: A Yogi's Guide to Joy
Source: Inner Engineering: A Yogi's Guide to Joy
“Pure mathematics is in its way the poetry of logical ideas.”
Albert Einstein (1879–1955) German-born physicist and founder of the theory of relativity
1930s, Obituary for Emmy Noether (1935)
Context: Pure mathematics is, in its way, the poetry of logical ideas. One seeks the most general ideas of operation which will bring together in simple, logical and unified form the largest possible circle of formal relationships. In this effort toward logical beauty spiritual formulas are discovered necessary for the deeper penetration into the laws of nature.
Ludwig Wittgenstein (1889–1951) Austrian-British philosopher
Source: Letters to Russell, Keynes and Moore
Andrea Dworkin (1946–2005) Feminist writer
Speech at Queen's College, City University of New York (March 12, 1975). "The Sexual Politics of Fear and Courage", ch. 5, published in Our Blood (1976).
Ben Shapiro (1984) American journalist and attorney
2016, Is Truth Becoming Irrelevant to Conservatives? (December 5, 2016)
Mustafa Kemal Atatürk (1881–1938) Turkish army officer, revolutionary, and the first President of Turkey
As quoted in Kemalizm, Laiklik ve Demokrasi [Kemalism, Laicism and Democracy] (1994) by Ahmet Taner Kışlalı
Context: Religion is an important institution. A nation without religion cannot survive. Yet it is also very important to note that religion is a link between Allah and the individual believer. The brokerage of the pious cannot be permitted. Those who use religion for their own benefit are detestable. We are against such a situation and will not allow it. Those who use religion in such a manner have fooled our people; it is against just such people that we have fought and will continue to fight. Know that whatever conforms to reason, logic, and the advantages and needs of our people conforms equally to Islam. If our religion did not conform to reason and logic, it would not be the perfect religion, the final religion.
Isaac Bashevis Singer (1902–1991) Polish-born Jewish-American author
Nobel lecture as quoted in The Observer (17 December 1978) Variant: "They still believe in God, the family, angels, witches, goblins, logic, clarity, punctuation, and other obsolete stuff."
Vladimir Lenin (1870–1924) Russian politician, led the October Revolution
Source: The Military Programme of the Proletarian Revolution
H.P. Lovecraft (1890–1937) American author
"Nietzscheism and Realism" from The Rainbow, Vol. I, No. 1 (October 1921); reprinted in "To Quebec and the Stars", and also in Collected Essays, Volume 5: Philosophy edited by S. T. Joshi, p. 71
Non-Fiction
Source: Collected Essays 5: Philosophy, Autobiography and Miscellany
G. H. Hardy (1877–1947) British mathematician
"The Theory of Numbers," Nature (Sep 16, 1922) Vol. 110 https://books.google.com/books?id=1bMzAQAAMAAJ p. 381
Francesco Balilla Pratella (1880–1955) Italian composer
Original text:
Tutti gli innovatori sono stati logicamente futuristi, in relazione ai loro tempi. Palestrina avrebbe giudicato pazzo Bach, e così Bach avrebbe giudicato Beethoven, e così Beethoven avrebbe giudicato Wagner.
Rossini si vantava di aver finalmente capito la musica di Wagner leggendola a rovescio! Verdi, dopo un’audizione dell’ouverture del Tannhäuser, in una lettera a un suo amico chiamava Wagner matto.
Siamo dunque alla finestra di un manicomio glorioso, mentre dichiariamo, senza esitare, che il contrappunto e la fuga, ancor oggi considerati come il ramo più importante dell’insegnamento musicale...
Source: Technical Manifesto of Futurist Music (1911), p. 80
Marvin Minsky (1927–2016) American cognitive scientist
Jokes and their Relation to the Cognitive Unconscious (1980)
George Boole (1815–1864) English mathematician, philosopher and logician
Source: 1850s, An Investigation of the Laws of Thought (1854), p. 12; Cited in: William Stanley Jevons (1887) The Principles of Science: : A Treatise on Logic and Scientific Method. p. 155
“Practice has a logic which is not that of the logician.”
Pierre Bourdieu book The Logic of Practice
(1990), The Logic of Practice. p. 86
Eugene Cernan (1934–2017) United States Navy officer and former NASA astronaut
In the Shadow of the Moon http://en.wikipedia.org/wiki/In_the_Shadow_of_the_Moon
Hubert Reeves (1932) Canadian astrophysicist and popularizer of science
Hubert Reeves (1984) Atoms of silence: an exploration of cosmic evolution Massachusetts Institute of Technology. p. 37
“Not to have a national anthem would be logical.”
George Orwell (1903–1950) English author and journalist
"As I Please," Tribune (31 December 1943)<sup> http://www.telelib.com/words/authors/O/OrwellGeorge/essay/tribune/AsIPlease19431231.html</sup> <br class="br">As I Please (1943–1947)
George Boole (1815–1864) English mathematician, philosopher and logician
Source: 1840s, The Mathematical Analysis of Logic, 1847, p. i: Lead paragraph of the Preface; cited in: R. H. Hutton, " Professor Boole http://books.google.com/books?id=pfMEAAAAQAAJ&pg=PA157," (1866), p. 157 <br class="br">Context: In presenting this Work to public notice, I deem it not irrelevant to observe, that speculations similar to those which it records have, at different periods, occupied my thoughts. In the spring of the present year my attention was directed to the question then moved between Sir W. Hamilton and Professor De Morgan; and I was induced by the interest which it inspired, to resume the almost-forgotten thread of former inquiries. It appeared to me that, although Logic might be viewed with reference to the idea of quantity, it had also another and a deeper system of relations. If it was lawful to regard it from without, as connecting itself through the medium of Number with the intuitions of Space and Time, it was lawful also to regard it from within, as based upon facts of another order which have their abode in the constitution of the Mind. The results of this view, and of the inquiries which it suggested, are embodied in the following Treatise.
Rabindranath Tagore (1861–1941) Bengali polymath
Preface <br class="br"> Sādhanā : The Realisation of Life http://www.spiritualbee.com/spiritual-book-by-tagore/ (1916) <br class="br">Context: The meaning of the living words that come out of the experiences of great hearts can never be exhausted by any one system of logical interpretation. They have to be endlessly explained by the commentaries of individual lives, and they gain an added mystery in each new revelation. To me the verses of the Upanishads and the teachings of Buddha have ever been things of the spirit, and therefore endowed with boundless vital growth; and I have used them, both in my own life and in my preaching, as being instinct with individual meaning for me, as for others, and awaiting for their confirmation, my own special testimony, which must have its value because of its individuality.
Karl Popper book The Logic of Scientific Discovery
Source: The Logic of Scientific Discovery (1934), Ch. 1 "A Survey of Some Fundamental Problems", Section I: The Problem of Induction
Context: A principle of induction would be a statement with the help of which we could put inductive inferences into a logically acceptable form. In the eyes of the upholders of inductive logic, a principle of induction is of supreme importance for scientific method: "… this principle", says Reichenbach, "determines the truth of scientific theories. To eliminate it from science would mean nothing less than to deprive science of the power to decide the truth or falsity of its theories. Without it, clearly, science would no longer have the right to distinguish its theories from the fanciful and arbitrary creations of the poet's mind."
Now this principle of induction cannot be a purely logical truth like a tautology or an analytic statement. Indeed, if there were such a thing as a purely logical principle of induction, there would be no problem of induction; for in this case, all inductive inferences would have to be regarded as purely logical or tautological transformations, just like inferences in inductive logic. Thus the principle of induction must be a synthetic statement; that is, a statement whose negation is not self-contradictory but logically possible. So the question arises why such a principle should be accepted at all, and how we can justify its acceptance on rational grounds.
“I cannot get from the nature of the proposition to the individual logical operations!!!”
Ludwig Wittgenstein (1889–1951) Austrian-British philosopher
Journal entries (12 March 1915 and 15 March 1915) p. 41e
1910s, Notebooks 1914-1916
Context: I cannot get from the nature of the proposition to the individual logical operations!!!
That is, I cannot bring out how far the proposition is the picture of the situation. I am almost inclined to give up all my efforts.
“Logic pervades the world: the limits of the world are also its limits.”
Ludwig Wittgenstein (1889–1951) Austrian-British philosopher
Original German:Die Logik erfüllt die Welt; die Grenzen der Welt sind auch ihre Grenzen. Wir können also in der Logik nicht sagen: Das und das gibt es in der Welt, jenes nicht.Das würde nämlich scheinbar voraussetzen, dass wir gewisse Möglichkeiten ausschließen, und dies kann nicht der Fall sein, da sonst die Logik über die Grenzen der Welt hinaus müsste; wenn sie nämlich diese Grenzen auch von der anderen Seite betrachten könnte. Was wir nicht denken können, das können wir nicht denken; wir können also auch nicht sagen, was wir nicht denken können.
1920s, Tractatus Logico-Philosophicus (1922)
Context: Logic pervades the world: the limits of the world are also its limits. So we cannot say in logic, "The world has this in it, and this, but not that." For that would appear to presuppose that we were excluding certain possibilities, and this cannot be the case, since it would require that logic should go beyond the limits of the world; for only in that way could it view those limits from the other side as well. We cannot think what we cannot think; so what we cannot think we cannot say either. (5.61)
George Boole (1815–1864) English mathematician, philosopher and logician
Source: 1840s, The Mathematical Analysis of Logic, 1847, p. iii
Context: That to the existing forms of Analysis a quantitative interpretation is assigned, is the result of the circumstances by which those forms were determined, and is not to be construed into a universal condition of Analysis. It is upon the foundation of this general principle, that I purpose to establish the Calculus of Logic, and that I claim for it a place among the acknowledged forms of Mathematical Analysis, regardless that in its object and in its instruments it must at present stand alone.
Ludwig Wittgenstein (1889–1951) Austrian-British philosopher
Variant translation: Philosophy is not a theory but an activity. A philosophical work consists essentially of elucidations. The result of philosophy is not a number of "philosophical propositions." but to make propositions clear.
Original German: Der Zweck der Philosophie ist die logische Klärung der Gedanken. Die Philosophie ist keine Lehre, sondern eine Tätigkeit. Ein philosophisches Werk besteht wesentlich aus Erläuterungen. Das Resultat der Philosophie sind nicht „philosophische Sätze“, sondern das Klarwerden von Sätzen. Die Philosophie soll die Gedanken, die sonst, gleichsam, trübe und verschwommen sind, klar machen und scharf abgrenzen.
1920s, Tractatus Logico-Philosophicus (1922)
Context: Philosophy aims at the logical clarification of thoughts. Philosophy is not a body of doctrine but an activity. A philosophical work consists essentially of elucidations. Philosophy does not result in 'philosophical propositions', but rather in the clarification of propositions. Without philosophy thoughts are, as it were, cloudy and indistinct: its task is to make them clear and to give them sharp boundaries. (4.112)
Nikola Tesla (1856–1943) Serbian American inventor
Source: My Inventions (1919)
Context: He declared that it could not be done and did me the honor of delivering a lecture on the subject, at the conclusion he remarked, "Mr. Tesla may accomplish great things, but he certainly will never do this. It would be equivalent to converting a steadily pulling force, like that of gravity into a rotary effort. It is a perpetual motion scheme, an impossible idea." But instinct is something which transcends knowledge. We have, undoubtedly, certain finer fibers that enable us to perceive truths when logical deduction, or any other willful effort of the brain, is futile.
“Communism is the final logic of the dehumanization of man.”
Fulton J. Sheen (1895–1979) Catholic bishop and television presenter
Second Series, p. 122
Life Is Worth Living (1951–1957)
Lewis Carroll (1832–1898) English writer, logician, Anglican deacon and photographer
Source: Alice's Adventures in Wonderland & Through the Looking-Glass
“Oh dear,' says God, 'I hadn't thought of that,' and promptly vanishes in a puff of logic.”
Douglas Adams (1952–2001) English writer and humorist
Source: The Ultimate Hitchhiker's Guide to the Galaxy
“… logical validity is not a guarantee of truth.”
David Foster Wallace book Infinite Jest
Source: Infinite Jest
“Logic will get you from A to Z; imagination will get you everywhere.”
Albert Einstein (1879–1955) German-born physicist and founder of the theory of relativity
Variant: Logic will get you from A to B. Imagination will take you anywhere.
Gena Showalter (1975) American writer
Source: Through the Zombie Glass
“I prefer to have some beliefs that don't make logical sense.”
Louise Erdrich (1954) writer from the United States
“All logical arguments can be defeated by the simple refusal to reason logically”
Steven Weinberg (1933) American theoretical physicist
Source: Dreams of a Final Theory
“It's a fool that looks for logic in the chambers of the human heart.”
Joel Coen (1954) American film director, screenwriter, producer, cinematographer and editor
Source: O Brother, Where Art Thou?
René Girard (1923–2015) French historian, literary critic, and philosopher of social science
Source: I See Satan Fall Like Lightning
“… you canʹt
always choose how you love a person. Love isnʹt logical or
fair. It just happens.”
Elizabeth Chandler (1954) writer
Source: Evercrossed
Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist
Jacques-Yves Cousteau (1910–1997) French naval officer, explorer, conservationist, filmmaker, innovator, scientist, photographer, author and …
“Logic takes care of itself; all we have to do is to look and see how it does it.”
Ludwig Wittgenstein (1889–1951) Austrian-British philosopher
Journal entry (13 October 1914), also in Tractatus Logico-Philosophicus (§ 5.47)
1910s, Notebooks 1914-1916
Paul Valéry (1871–1945) French poet, essayist, and philosopher
Source: Regards sur le monde actuel [Reflections on the World Today] (1931), pp. 158-159
“The best music always results from ecstasies of logic.”
Alban Berg (1885–1935) Austrian composer
Quoted by Donal Henahan in the New York Times Magazine, May 11, 1975.
Lotfi A. Zadeh (1921–2017) Electrical engineer and computer scientist
About "What kinds of applications have you been excited to see develop?"
1990s, Interview with Lotfi Zadeh, Creator of Fuzzy Logic (1994)
H.P. Lovecraft (1890–1937) American author
Letter to Natalie H. Wooley (2 May 1936), in Selected Letters V, 1934-1937 edited by August Derleth and Donald Wandrei, pp. 240-241
Non-Fiction, Letters
Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist
Source: 1910s, Mysticism and Logic and Other Essays http://archive.org/stream/mysticism00russuoft/mysticism00russuoft_djvu.txt (1918), Ch. 1: Mysticism and Logic
Raymond Geuss book Philosophy and Real Politics
Source: Philosophy and Real Politics (2008), p. 38.
Max Planck (1858–1947) German theoretical physicist
Where is science going? The Universe in the light of modern physics. (1932)
“No, no, you are not thinking, you are just being logical.”
Niels Bohr (1885–1962) Danish physicist
In response to those who made purely formal or mathematical arguments, as quoted in What Little I Remember (1979) by Otto Robert Frisch, p. 95
Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist
Source: 1910s, Our Knowledge of the External World (1914), p. 8
Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist
Source: 1950s, Portraits from Memory and Other Essays (1956), p. 211
Friedrich Nietzsche book The Birth of Tragedy
Nochmals gesagt, heute ist es mir ein unmögliches Buch, - ich heisse es schlecht geschrieben, schwerfällig, peinlich, bilderwüthig und bilderwirrig, gefühlsam, hier und da verzuckert bis zum Femininischen, ungleich im Tempo, ohne Willen zur logischen Sauberkeit, sehr überzeugt und deshalb des Beweisens sich überhebend, misstrauisch selbst gegen die Schicklichkeit des Beweisens, als Buch für Eingeweihte, als "Musik" für Solche, die auf Musik getauft, die auf gemeinsame und seltene Kunst-Erfahrungen hin von Anfang der Dinge an verbunden sind, als Erkennungszeichen für Blutsverwandte in artibus, - ein hochmüthiges und schwärmerisches Buch, das sich gegen das profanum vulgus der "Gebildeten" von vornherein noch mehr als gegen das "Volk" abschliesst, welches aber, wie seine Wirkung bewies und beweist, sich gut genug auch darauf verstehen muss, sich seine Mitschwärmer zu suchen und sie auf neue Schleichwege und Tanzplätze zu locken.
"Attempt at a Self-Criticism", p. 5
The Birth of Tragedy (1872)
Ronald Fisher book The Genetical Theory of Natural Selection
On the objection (still often made by creationists) that the theory of evolution predicts evolution occurs "only by chance", Ch. 2, p. 37.
The Genetical Theory of Natural Selection (1930)
Gottlob Frege (1848–1925) mathematician, logician, philosopher
Introduction, Tr. Montgomery Furth (1964)
Grundgesetze der Arithmetik, 1893 and 1903
Joseph Goebbels (1897–1945) Nazi politician and Propaganda Minister
On National-Socialism, Bolshevism & Democracy (September 10, 1938) http://www.jewishvirtuallibrary.org/joseph-goebbels-on-national-socialism-bolshevism-and-democracy <br class="br">1930s
H.P. Lovecraft (1890–1937) American author
Letter to Harry O. Fischer (late February 1937), in Selected Letters V, 1934-1937 edited by August Derleth and Donald Wandrei, pp. 416-417
Non-Fiction, Letters
Niels Henrik Abel (1802–1829) Norwegian mathematician
Letter to Christoffer Hansteen (1826) as quoted by Øystein Ore, Niels Henrik Abel: Mathematician Extraordinary (1957) & in part by Morris Kline, Mathematical Thought from Ancient to Modern Times (1972) citing Œuvres, 2, 263-65
Sita Ram Goel book The Calcutta Quran Petition
The Calcutta Quran Petition (1986)
Wilhelm Von Humboldt (1767–1835) German (Prussian) philosopher, government functionary, diplomat, and founder of the University of Berlin
Source: The Limits of State Action (1792), Ch. 8
“The rules of logic are to mathematics what those of structure are to architecture.”
Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist
1900s, "The Study of Mathematics" (November 1907)
C. V. Raman (1888–1970) Indian physicist
[Parameswaran, Uma, C.V. Raman: A Biography, http://books.google.com/books?id=RbgXRdnHkiAC, 2011, Penguin Books India, 978-0-14-306689-7] page=xiv
Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist
Variant: Every philosophical problem, when it is subjected to the necessary analysis and purification, is found either to be not really philosophical at all, or else to be, in the sense in which we are using the word, logical.
Source: 1910s, Our Knowledge of the External World (1914), p. 33
Ben Shapiro (1984) American journalist and attorney
2016, Is Truth Becoming Irrelevant to Conservatives? (December 5, 2016)
Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist
'Vagueness' http://www.personal.kent.edu/~rmuhamma/Philosophy/RBwritings/vagueness.htm, first published in The Australasian Journal of Psychology and Philosophy, 1 June, 1923 <br class="br">1920s
Hermann Göring (1893–1946) German politician and military leader
To Leon Goldensohn (27 May 1946)
The Nuremberg Interviews (2004)
Ali Khamenei (1939) Iranian Shiite faqih, Marja' and official independent islamic leader
Message of Ayatollah Seyyed Ali Khamenei To the Youth in Europe and North America http://english.khamenei.ir//index.php?option=com_content&task=view&id=2001, Khamenei.ir (January 21, 2015) <br class="br">2015
Rasmus Lerdorf (1968) Danish programmer and creator of PHP
Itconversations.com http://itc.conversationsnetwork.org/shows/detail58.html quoted in www.dasgenie.com http://www.dasgenie.com/scrap/archives/000060.html
Theodor W. Adorno (1903–1969) German sociologist, philosopher and musicologist known for his critical theory of society
Source: Wozu noch Philosophie? [Why still philosophy?] (1963), p. 6
Theodor W. Adorno (1903–1969) German sociologist, philosopher and musicologist known for his critical theory of society
Source: Lectures on Negative Dialectics (1965-66), p. 169
Ronald Reagan (1911–2004) American politician, 40th president of the United States (in office from 1981 to 1989)
Speech on Project Economic Justice http://www.cesj.org/about-cesj-in-brief/history-accomplishments/pres-reagans-speech-on-project-economic-justice/ (The White House, 3 August 1987) <br class="br">1980s, Second term of office (1985–1989)
Jordan Peterson (1962) Canadian clinical psychologist, cultural critic, and professor of psychology
Identity politics and the Marxist lie of white privilege talk, 3rd November 2017
Steven Weinberg (1933) American theoretical physicist
"Testing Quantum Mechanics" http://www.sciencedirect.com/science/article/pii/0003491689902765, Annals of Physics (1989)
Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist
Source: 1910s, Introduction to Mathematical Philosophy (1919), Ch. 16: Descriptions