Quotes about proof
page 6

Yann Martel photo
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Eric S. Raymond photo
Sören Kierkegaard photo

“Sin is man’s destruction. Only the rust of sin can consume the soul-or eternally destroy it. For here indeed is the remarkable thing from which already that simple wise man of olden time derived a proof of the immortality of the soul, that the sickness of the soul (sin) is not like bodily sickness which kills the body. Sin is not a passage-way which a man has to pass through once, for from it one shall flee; sin is not (like suffering) the instant, but an eternal fall from the eternal, hence it is not ‘once’, and it cannot possibly be that its ‘once’ is no time. No, just as between the rich man in hell and Lazarus in Abraham’s bosom there was a yawning gulf fixed, so is there also a yawning distinction between suffering and sin. Let us not confuse it, lest talk about suffering might become less frank-hearted, because it had also sin in mind, and this less frank-hearted talk might be boldly impudent inasmuch as it is talking this way about sin. This precisely is the Christian position, that there is this infinite distinction between evil and evil, as they are confusedly named; this precisely is the Christian characteristic, to talk of temporal sufferings ever more and more frank-heartedly, more triumphantly, more joyfully, because Christianity regarded, sin, and sin only, is destructive.”

Søren Kierkegaard, Christian Discourses, The Joy of it – That We Suffer Only Once But Triumph Eternally. P. 108 Lowrie Translation 1961 Oxford University Press
1840s, Christian Discourses (1848)

Washington Irving photo
Homér photo

“The proof of battle is action, proof of words, debate.”

XVI. 630 (tr. Robert Fagles).
Iliad (c. 750 BC)

Will Eisner photo
Jack McDevitt photo
John Adams photo
George Holmes Howison photo
Ernesto Che Guevara photo

“To send men to the firing squad, judicial proof is unnecessary. These procedures are an archaic bourgeois detail. This is a revolution! And a revolutionary must become a cold killing machine motivated by pure hate. We must create the pedagogy of the paredón”

Ernesto Che Guevara (1928–1967) Argentine Marxist revolutionary

execution wall
As quoted in The Cuban Revolution : Years of Promise (2005) by Teo A. Babun and Victor Andres Triay, p. 57, citing "Che Guevara: Assassin and Bumbler" by Humberto Fontova from Mensnewsdaily.com, 2 March 2004; Fontava does not identify a source for Guevara's statement.
Disputed

Báb photo

“A mathematician, then, will be defined in what follows as someone who has published the proof of at least one non-trivial theorem.”

Mathematics and Mathematicians (1992); published in Is Mathematics Inevitable? A Miscellany (2008), edited by Underwood Dudley, p. 3. ISBN 0883855666

William Wordsworth photo

“Where music dwells
Lingering and wandering on as loth to die,
Like thoughts whose very sweetness yieldeth proof
That they were born for immortality.”

William Wordsworth (1770–1850) English Romantic poet

Part III, No. 43 - Inside of King's College Chapel, Cambridge.
Ecclesiastical Sonnets (1821)

Georg Brandes photo
Sarah Grimké photo
Antoine Lavoisier photo

“The art of concluding from experience and observation consists in evaluating probabilities, in estimating if they are high or numerous enough to constitute proof. This type of calculation is more complicated and more difficult than one might think. It demands a great sagacity generally above the power of common people. The success of charlatans, sorcerors, and alchemists—and all those who abuse public credulity—is founded on errors in this type of calculation.”

Antoine Lavoisier (1743–1794) French chemist

Antoine Lavoisier and Benjamin Franklin, Rapport des commissaires chargés par le roi de l'examen du magnétisme animal (Imprimerie royale, 1784), trans. Stephen Jay Gould, "The Chain of Reason versus the Chain of Thumbs", Bully for Brontosaurus (W.W. Norton, 1991), p. 195

Robert Sheckley photo
David Hume photo
Daniel Handler photo
Evagrius Ponticus photo
Samuel Johnson photo

“If the man who turnips cries,
Cry not when his father dies,
'Tis a proof that he had rather
Have a turnip than his father.”

Samuel Johnson (1709–1784) English writer

Source: Anecdotes of Samuel Johnson (1786), p. 67

Richard Feynman photo
Chris Hedges photo
Frederic G. Kenyon photo
Leonid Kantorovich photo
Ali al-Rida photo

“Silence is a door among the doors of wisdom - indeed, silence begets and attracts love, it is the proof of all the beneficiences.”

Ali al-Rida (770–818) eighth of the Twelve Imams

Majlisi, Bihārul Anwār, vol.78, p. 355.
Regarding Knowledge & Wisdom, General

Hilaire Belloc photo

“The Catholic Church is an institution I am bound to hold divine — but for unbelievers a proof of its divinity might be found in the fact that no merely human institution conducted with such knavish imbecility would have lasted a fortnight.”

Hilaire Belloc (1870–1953) writer

Remark (undated) to William Temple, quoted in Robert Speaight, The Life of Hilaire Belloc (London: Hollis & Carter, 1957), p. 383

Gino Severini photo

“I was interested in achieving a creative freedom, a style that I could express with Seurat's.... color technique [color-divisionism], but shaped to my own needs. Proof that I found it is in my paintings of that period, among which is the famous 'Pan-Pan a Monico' [Severini painted in 1912]. My preference for Neo-Impressionism dates from those works. At times I tried to suppress it, but it always worked its way back to the surface.”

Gino Severini (1883–1966) Italian painter

Source: The Life of a Painter - autobiography', 1946, p. 53; as quoted in: Shannon N. Pritchard, Gino Severini and the symbolist aesthetics of his futurist dance imagery, 1910-1915 https://getd.libs.uga.edu/pdfs/pritchard_shannon_n_200305_ma.pdf Diss. uga, 2003.

W. W. Rouse Ball photo
Clinton Edgar Woods photo
Phillip Guston photo
Aron Ra photo
Mohammad Hidayatullah photo
Erik Naggum photo
Varadaraja V. Raman photo

“It has been said that science is proof without certainty, where as religion is certainty without proof.”

Varadaraja V. Raman (1932) American physicist

page 305
Truth and Tension in Science and Religion

“The pure religious consciousness lies in a region which is forever beyond all proof or disproof.”

Walter Terence Stace (1886–1967) British civil servant, educator and philosopher.

p. 136

David Brin photo
Revilo P. Oliver photo
Miranda July photo
William Trufant Foster photo
Kurt Lewin photo
John C. Dvorak photo
Thomas Carlyle photo

“No sadder proof can be given by a man of his own littleness than disbelief in great men.”

Thomas Carlyle (1795–1881) Scottish philosopher, satirical writer, essayist, historian and teacher

1840s, Heroes and Hero-Worship (1840), The Hero as Divinity

William Paley photo
Peter F. Drucker photo
Alexis De Tocqueville photo

“General ideas are no proof of the strength, but rather of the insufficiency of the human intellect.”

Book One, Chapter III.
Democracy in America, Volume II (1840), Book One

Joe Higgins photo
Leszek Kolakowski photo

“As Commissar for the Armed Forces and a member of the Politburo he [Trotsky] still appeared powerful, but by 1923 he was isolated and helpless. All his former tergiversations were turned against him. When he came to realize his situation he attacked the bureaucratization of the party and the stifling of intra-party democracy: like all overthrown Communist leaders he became a democrat as soon as he was ousted from power. However, it was easy for Stalin and Zinovyev to show not only that Trotsky’ s democratic sentiments and indignation at party bureaucracy were of recent date, but that he himself, when in power, had been a more extreme autocrat than anyone else: he had supported or initiated every move to protect party "unity", had wanted – contrary to Lenin’ s policy – to place the trade unions under state control and to subject the whole economy to the coercive power of the police, and so on. In later years Trotsky claimed that the policy, which he had supported, of prohibiting "fractions" was envisaged as an exceptional measure and not a permanent principle. But there is no proof that this was so, and nothing in the policy itself suggests that it was meant to be temporary. It may be noted that Zinovyev showed more zeal than Stalin in condemning Trotsky – at one stage he was in favour of arresting him – and thus supplied Stalin with useful ammunition when the two ousted leaders tried, belatedly and hopelessly, to join forces against their triumphant rival.”

Leszek Kolakowski (1927–2009) Philosopher, historian of ideas

pg. 21
Main Currents Of Marxism (1978), Three Volume edition, Volume III: The Breakdown

John Milton photo

“Under the shady roof
Of branching elm star-proof.”

Arcades (1630-1634), line 88

Marcus Manilius photo

“By several proofs experience art has made,
Example being guide.”

Per varios usus artem experientia fecit, Exemplo monstrante viam.

Book I, line 61. Quoted by Michel de Montaigne in Essays, Vol. III, Ch. 13 (tr. Charles Cotton).
Variant translation: Experience, after many trials, perfected the art, example showing the way.
Astronomica

Krishna Raja Wadiyar IV photo
Slavoj Žižek photo
Benjamin Franklin photo

“The art of concluding from experience and observation consists in evaluating probabilities, in estimating if they are high or numerous enough to constitute proof. This type of calculation is more complicated and more difficult than one might think. It demands a great sagacity generally above the power of common people. The success of charlatans, sorcerors, and alchemists — and all those who abuse public credulity — is founded on errors in this type of calculation.”

Benjamin Franklin (1706–1790) American author, printer, political theorist, politician, postmaster, scientist, inventor, civic activist, …

Benjamin Franklin and Antoine Lavoisier, Rapport des commissaires chargés par le roi de l'examen du magnétisme animal (1784), as translated in "The Chain of Reason versus the Chain of Thumbs", Bully for Brontosaurus (1991) by Stephen Jay Gould,. p. 195.
Decade unclear

Anselme Bellegarrigue photo
Quentin Tarantino photo

“I look at Death Proof and realize I had too much time.”

Quentin Tarantino (1963) American film director, screenwriter, producer, and actor

http://web.archive.org/20090520151810/www.hollywoodreporter.com/hr/content_display/features/interviews_profiles/e3i07c80a70350aca72e68eea8ffc6de060.

Tom Stoppard photo
Iain Banks photo
Camille Paglia photo
Andrei Lankov photo
Archimedes photo
Charles Babbage photo
Aron Ra photo

“Demanding an “ape-man” is actually just as silly as asking to see a mammal-man, or a half-human, half-vertebrate. How about a half dachshund, half dog? It’s the same thing. One may as well insist on seeing a town half way between Los Angeles and California. Because the problem with bridging the gap between humans and apes is that there is no gap because humans are apes –definitely and definitively. The word, “ape” doesn’t refer to a species, but to a parent category of collective species, and we’re included. This is no arbitrary classification like the creationists use. It was first determined via meticulous physical analysis by Christian scientists a century before Darwin, and has been confirmed in recent years with new revelations in genetics. Furthermore, it is impossible to define all the characters exclusively indicative of every known member of the family of apes without describing our own genera as one among them. Consequently, we can and have proven that humans are apes in exactly the same way that lions are cats, and iguanas are lizards, and whales are mammals. So where is the proof that humans descend from apes? How about the fact that we’re still apes right now!”

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

"9th Foundational Falsehood of Creationism" https://www.youtube.com/watch?v=Qfoje7jVJpU, Youtube (May 8, 2008)
Youtube, Foundational Falsehoods of Creationism

Richard Feynman photo

“For those who want some proof that physicists are human, the proof is in the idiocy of all the different units which they use for measuring energy.”

Source: The Character of Physical Law (1965), chapter 3, “The Great Conservation Principles,” p. 75

Pierre Louis Maupertuis photo

“After so many great men have worked on this subject, I almost do not dare to say that I have discovered the universal principle upon which all these laws are based, a principle that covers both elastic and inelastic collisions and describes the motion and equilibrium of all material bodies.
This is the principle of least action, a principle so wise and so worthy of the supreme Being, and intrinsic to all natural phenomena; one observes it at work not only in every change, but also in every constancy that Nature exhibits. In the collision of bodies, motion is distributed such that the quantity of action is as small as possible, given that the collision occurs. At equilibrium, the bodies are arranged such that, if they were to undergo a small movement, the quantity of action would be smallest.
The laws of motion and equilibrium derived from this principle are exactly those observed in Nature. We may admire the applications of this principle in all phenomena: the movement of animals, the growth of plants, the revolutions of the planets, all are consequences of this principle. The spectacle of the universe seems all the more grand and beautiful and worthy of its Author, when one considers that it is all derived from a small number of laws laid down most wisely. Only thus can we gain a fitting idea of the power and wisdom of the supreme Being, not from some small part of creation for which we know neither the construction, usage, nor its relationship to other parts. What satisfaction for the human spirit in contemplating these laws of motion and equilibrium for all bodies in the universe, and in finding within them proof of the existence of Him who governs the universe!”

Pierre Louis Maupertuis (1698–1759) French mathematician, philosopher and man of letters

Les Loix du Mouvement et du Repos, déduites d'un Principe Métaphysique (1746)

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Leon R. Kass photo

“I have discovered in the Hebrew Bible teachings of righteousness, humaneness, and human dignity—at the source of my parents' teachings of mentschlichkeit—undreamt of in my prior philosophizing. In the idea that human beings are equally God-like, equally created in the image of the divine, I have seen the core principle of a humanistic and democratic politics, respectful of each and every human being, and a necessary correction to the uninstructed human penchant for worshiping brute nature or venerating mighty or clever men. In the Sabbath injunction to desist regularly from work and the flux of getting and spending, I have discovered an invitation to each human being, no matter how lowly, to step outside of time, in imitatio Dei, to contemplate the beauty of the world and to feel gratitude for its—and our—existence. In the injunction to honor your father and your mother, I have seen the foundation of a dignified family life, for each of us the nursery of our humanization and the first vehicle of cultural transmission. I have satisfied myself that there is no conflict between the Bible, rightly read, and modern science, and that the account of creation in the first chapter of Genesis offers "not words of information but words of appreciation," as Abraham Joshua Heschel put it: "not a description of how the world came into being but a song about the glory of the world's having come into being"—the recognition of which glory, I would add, is ample proof of the text's claim that we human beings stand highest among the creatures. And thanks to my Biblical studies, I have been moved to new attitudes of gratitude, awe, and attention. For just as the world as created is a world summoned into existence under command, so to be a human being in that world—to be a mentsch—is to live in search of our ­summons. It is to recognize that we are here not by choice or on account of merit, but as an undeserved gift from powers not at our disposal. It is to feel the need to justify that gift, to make something out of our indebtedness for the opportunity of existence. It is to stand in the world not only in awe of its and our existence but under an obligation to answer a call to a worthy life, a life that does honor to the special powers and possibilities—the divine-likeness—with which our otherwise animal existence has been, no thanks to us, endowed.”

Leon R. Kass (1939) American academic

Looking for an Honest Man (2009)

Daniel Abraham photo

“There was life out there. They had proof of it now. And the proof came in the shape of a weapon, so what did that tell him?”

Daniel Abraham (1969) speculative fiction writer from the United States

Source: Leviathan Wakes (2011), Chapter 38 (p. 379)

Orson Scott Card photo
Agatha Christie photo

“Proof must be solid break walls of facts.”

Agatha Christie (1890–1976) English mystery and detective writer

(1945)

Claude Bernard photo
Algis Budrys photo

“Young man, you’re living proof that our basic policy is right. I wouldn’t trust an ignoramus like you with the information required to cut his throat.”

Algis Budrys (1931–2008) American writer

The End of Summer, p. 23
The Unexpected Dimension (1960)

Ilana Mercer photo
Jerome Frank photo

“(1) If a convicted man has the money to pay the docket fee and for a transcript of the proceedings at his trial, the upper federal court, by at least reading the transcript, will ascertain whether or not there was reversible error at the trial, or whether or not there was such a lack of evidence that the defendant is entitled to a new trial or a dismissal of the indictment.
(2) If, however, the defendant is so destitute that he cannot pay the docket fee, and if the trial judge has signed a certificate of 'bad faith,' then although a reading of the transcript shows clear reversible errors, the federal appellate court is powerless to hear the appeal and thus to rectify the errors; and even if the defendant has money enough to pay the docket fee but not enough for a transcript, the upper court usually has no way of determining whether there were such errors, must therefore assume there were none, and must accordingly refuse to consider his appeal. As a consequence, a poor man erroneously convicted-- e. g., where there was insufficient proof of his guilt--must go to prison and stay there. In such a situation-- i. e., where the upper court, if it had the transcript before it, would surely reverse for insufficiency of the evidence or on some other ground, but cannot do so solely because the defendant cannot pay for a transcript-- the result is this: He is punished because he is guilty of the crime of being poor”

Jerome Frank (1889–1957) American jurist

more or less on the principle, openly avowed in Erewhon only, that one who suffers misfortunes deserves criminal punishment
United States v. Johnson, 238 F.2d 565, 568 (1956) (dissenting).

“While no rigorous proof of an optimal strategy has been achieved, Robbins has proposed the principal of "staying on a winner" and has shown it to be uniformly better than a strategy of random selection.”

Richard Arnold Epstein (1927) American physicist

Source: The Theory of Gambling and Statistical Logic (Revised Edition) 1977, Chapter Four, Coins, Wheels, And Oddments, p. 98

Henry L. Benning photo
Johann Heinrich Pestalozzi photo
John Calvin photo
Samuel Vince photo

“The rapid establishment of Christianity must therefore have been from the conviction which those who embraced it, had of its "Truth and power unto salvation." Christianity at first spread itself amongst the most enlightened nations of the earth - in those places where human learning was in its greatest perfection; and, by the force of the evidence which attended it, amongst such men it gained an establishment. It has been justly observed, that "it happened very providentially to the honour of the Christian religion, that it did not take its rise in the dark illiterate ages of the world, but at a time when arts and sciences were t their height, and when there were men who made it the business of their lives to search after truth and lift the several opinions of the philosophers and wise men, concerning the duty, the end, and chief happiness of reasonable creatures." Both the learned and the ignorant alike embraced its doctrines; the learned were not likely to be deceived in the proofs which were offered; and the same cause undoubtedly operated to produce the effect upon each. But an immediate conversion of the bulk of mankind, can arise only from some proofs of a ddivine authority offering themselves immediately to the senses; the preaching of any new doctrine, if lest to operate only by its own force, would go but a very little way towards the immediate conversion of the gnorant, who have no principle of action but what arises from habit, and whose powers of reasoning are insufficient to correct their errors. When Mahomet was required by his followers to work a miracle for their conviction, he always declined it; he was too cautious to trust to an experiment, the success of which was scarcely whithin the bounds of probablity; he amused his followers with prtended visions, which with the aid afterwards of the civil and military powr; and as the accomplishment of that event was by a few obscure persons, who founded their pretentions upon authority from heaven, we are next to consider, what kind of proofs of their divine commission they offered to the world; and whether they themselves could have been deceived, or mankind could have been deludded by them.”

Samuel Vince (1749–1821) British mathematician, astronomer and physicist

Source: The Credibility of Christianity Vindicated, p. 20; As quoted in " Book review http://books.google.nl/books?id=52tAAQAAMAAJ&pg=PA261," in The British Critic, Volume 12 (1798). F. and C. Rivington. p. 261-262

Thomas Edison photo

“I have never seen the slightest scientific proof of the religious ideas of heaven and hell, of future life for individuals, or of a personal God.”

Thomas Edison (1847–1931) American inventor and businessman

As quoted in Jesus : Myth Or Reality? (2006) by Ian Curtis, p. 289.
Date unknown

Thomas Jefferson photo

“I, too, have made a wee-little book from the same materials, which I call the Philosophy of Jesus; it is a paradigma of his doctrines, made by cutting the texts out of the book, and arranging them on the pages of a blank book, in a certain order of time or subject. A more beautiful or precious morsel of ethics I have never seen; it is a document in proof that I am a real Christian, that is to say, a disciple of the doctrines of Jesus, very different from the Platonists, who call me infidel and themselves Christians and preachers of the gospel, while they draw all their characteristic dogmas from what its author never said nor saw. They have compounded from the heathen mysteries a system beyond the comprehension of man, of which the great reformer of the vicious ethics and deism of the Jews, were he to return on earth, would not recognize one feature.”

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

Christopher Monckton photo
George Holmes Howison photo
Charles Henry Fowler photo
Jean Paul Sartre photo
Dinesh D'Souza photo
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