Quotes about proof (849 quotes) | Quotes of famous people

“We must not forget that when radium was discovered no one knew that it would prove useful in hospitals. The work was one of pure science. And this is a proof that scientific work must not be considered from the point of view of the direct usefulness of it. It must be done for itself, for the beauty of science, and then there is always the chance that a scientific discovery may become like the radium a benefit for humanity.”

Marie Curie (1867–1934) French-Polish physicist and chemist

Lecture at Vassar College, Poughkeepsie, New York (14 May 1921)

Beauty , Science , Chance , Forgetting

“You could spend your whole life imagining ghosts, worrying about the pathway to the future but all there will ever be is what's happening here and the decisions we make in this moments which are based in either love or fear. So many of us choose our path out of fear disguised as practicality. What we really want seems impossibly out of reach and ridiculous to expect so we never dared the universe for it. I'm saying I'm the proof that you can ask the universe for it. My father could have been a great comedian, but he didn't believe that that was possible for him and so he made a conservative choice instead, he got a safe job as an accountant and when I was 12 years old he was let go from that safe job and our family had to do whatever we could do to survive. I learned many great lessons from my father, not the least of which was that you could fail at what you don't want, so you might as well take a chance on doing what you love.”

Jim Carrey (1962) Canadian-American actor, comedian, and producer

Love , Life , Fear , Family

“Romantic love, in pornography as in life, is the mythic celebration of female negation. For a woman, love is defined as her willingness to submit to her own annihilation…. The proof of love is that she is willing to be destroyed by the one whom she loves, for his sake. For the woman, love is always self-sacrifice, the sacrifice of identity, will, and bodily integrity, in order to fulfill and redeem the masculinity of her lover.”

Andrea Dworkin (1946–2005) Feminist writer

Speech at Massachusetts Institute of Technology, Cambridge (September 26, 1975). "The Root Cause", ch. 9, Our Blood (1976).

Love , Life , Lovers

“If the proof is correct then no other recognition is needed.”

Grigori Perelman (1966) Russian mathematician

[David S. Richeson, Euler's Gem: The Polyhedron Formula and the Birth of Topology, http://books.google.com/books?id=KUYLhOVkaV4C&pg=PA285, 8 March 2012, Princeton University Press, 1-4008-3856-8, 285]

“A multitude of words is no proof of a prudent mind.”

Thales (-624–-547 BC) ancient Greek philosopher and mathematician

As quoted in Diogenes Laërtius, The Lives and Opinions of Eminent Philosophers, I, 35; as translated in Dictionary of Quotations (Classical) edited by Thomas Benfield Harbottle, p. 455
Also translated as: "Many words do not declare an understanding heart."

“I have no need of proof. The laws of nature, unlike the laws of grammar, admit of no exception.”

Dmitri Mendeleev (1834–1907) Russian chemist and inventor

An Outline of the System of the Elements

Law , Nature

“The argument goes something like this: "I refuse to prove that I exist," says God, "for proof denies faith, and without faith I am nothing.”

Douglas Adams The Hitchhiker's Guide to the Galaxy pentalogy

Source: The Hitchhiker's Guide to the Galaxy

For Men , God , Faith

“First, for over seven years the United States has been occupying the lands of Islam in the holiest of places, the Arabian Peninsula, plundering its riches, dictating to its rulers, humiliating its people, terrorizing its neighbors, and turning its bases in the Peninsula into a spearhead through which to fight the neighboring Muslim peoples.
If some people have in the past argued about the fact of the occupation, all the people of the Peninsula have now acknowledged it. The best proof of this is the Americans' continuing aggression against the Iraqi people using the Peninsula as a staging post, even though all its rulers are against their territories being used to that end, but they are helpless.
Second, despite the great devastation inflicted on the Iraqi people by the crusader-Zionist alliance, and despite the huge number of those killed, which has exceeded 1 million… despite all this, the Americans are once again trying to repeat the horrific massacres, as though they are not content with the protracted blockade imposed after the ferocious war or the fragmentation and devastation.
So here they come to annihilate what is left of this people and to humiliate their Muslim neighbors.
Third, if the Americans' aims behind these wars are religious and economic, the aim is also to serve the Jews' petty state and divert attention from its occupation of Jerusalem and murder of Muslims there. The best proof of this is their eagerness to destroy Iraq, the strongest neighboring Arab state, and their endeavor to fragment all the states of the region such as Iraq, Saudi Arabia, Egypt, and Sudan into paper statelets and through their disunion and weakness to guarantee Israel's survival and the continuation of the brutal crusade occupation of the Peninsula.”

Osama bin Laden (1957–2011) founder of al-Qaeda

1990s, Jihad Against Jews and Crusaders (1998)

War , People , Past , Fight

“All human beings have an innate skill — survival skill. The fact that poor are still alive is a proof of their ability to survive. We do not need to teach them how to survive. They know this already.”

Muhammad Yunus (1940) Bangladeshi banker, economist and Nobel Peace Prize recipient

Profile at North American Bangladesh Info Center http://www.bongoz.com/people/yunus.html

“The voice of the majority is no proof of justice.”

Friedrich Schiller (1759–1805) German poet, philosopher, historian, and playwright

As quoted in A Dictionary of Thoughts : Being a Cyclopedia of Laconic Quotations from the Best Authors, Both Ancient and Modern (1891) edited by Tryon Edwards. p. 324

Justice

“(letter adressed to Mihai Antonescu, 6 september 1941) „We must all understand that this is not a fight against Slavs, but against the Jews. It's a battle for life and death. Either we win and the world will purify, or they'll win and we'll become their slaves. Both the war in general and the battles at Odessa, especially, have made the proof that the Jew is Satan.”

Ion Antonescu (1882–1946) prime minister and conducător of Romania during World War II

Source: https://www.youtube.com/watch?v=EJodTuDeoYg

Life , Death , War , World

“Art is a demonstration of which nature is the proof.”

George Sand (1804–1876) French novelist and memoirist; pseudonym of Lucile Aurore Dupin

L'art est une démonstration dont la nature est la preuve.
François le Champi, Introduction (1848); Jane Minot Sedgwick (trans.) François the Waif {New York: H. M. Caldwell, 1894) p. 17

Art , Nature

“The belief in a certain idea gives to the researcher the support for his work. Without this belief he would be lost in a sea of doubts and insufficiently verified proofs.”

Konrad Zuse (1910–1995) German computer scientist and engineer

Der Glaube an eine bestimmte Idee gibt dem Forscher den Rückhalt für seine Arbeit. Ohne diesen Glauben wäre er verloren in einem Meer von Zweifeln und halbgültigen Beweisen.
Attributed in Konrad Zuse http://www.dpma.de/ponline/erfindergalerie/bio_zuse.html on "Die Erfindergalerie", dpma.de, 2008

Idea , Support , Sea

“As it is natural to believe many things without proof, so, despite all proof, is it natural to disbelieve others.”

Luc de Clapiers, Marquis de Vauvenargues (1715–1747) French writer, a moralist

Source: Reflections and Maxims (1746), p. 184.

Nature

“Most of people talk, we do things. They plan, we achieve. They hesitate, we move ahead. We are living proof that when human beings have the courage and commitment to transform a dream into reality, there is nothing that can stop them. Dubai is a living example of that”

Mohammed bin Rashid al-Maktoum (1949) Emirati politician

Inspirational Quotes to lighten our load, http://neuralorganizationtherapy.com/Inspirational_Quotes.html, Neural Organization Therapy

People , Dreams , Courage , Reality

“Theoretically there is no absolute proof that one's awakening in the morning (the finding oneself again in the saddle of one's personality) is not really a quite unprecedented event, a perfectly original birth.”

Vladimir Nabokov book Bend Sinister

Source: Bend Sinister

Birth , Personality

“I was working on the proof of one of my poems all the morning, and took out a comma. In the afternoon I put it back again.”

Oscar Wilde (1854–1900) Irish writer and poet

“There is a principle which is a bar against all information, which is proof against all arguments, and which cannot fail to keep a man in everlasting ignorance - that principle is contempt prior to investigation.”

William Paley (1743–1805) Christian apologist, natural theologian, utilitarian

“Attack is the proof that your enemy anticipates your success.”

Mike Murdock (1946) American televangelist

Success

“Wide acceptance of an idea is not proof of its validity.”

Dan Brown book The Lost Symbol

Source: The Lost Symbol

Idea

“Those who claim to discover everything but produce no proofs of the same may be confuted as having actually pretended to discover the impossible.”

Archimedes book On Spirals

On Spirals (225 B.C.)

“My social conscience is fairly limited in a lot of ways; there's not much I'm angry about that doesn't affect me quite directly. But the prison system- not particularly capital punishment- but the penal system as it is, and the whole apparatus of judgement, people deciding on other people's fates… that does irritate, and upset me quite a lot. What angers me about the system goes beyond the unreliability of "proof"… it's that the way criminals are dealt with has nothing to do with rehabilitation and readjusting people who've stepped outside society's norms. The same goes for mental institutions and so forth. But it's also the very idea of someone being judged "criminal" or "insane" because they're unable to fit into what a corrupt society considers "social" or "sociable."”

Nick Cave (1957) Australian musician

Politics, society and humanity

Fate , People , Way , Idea

“My true friends have always given me that supreme proof of devotion, a spontaneous aversion for the man I loved.”

Colette book Break of Day

Break of Day (1928)

Love

“You want to have proven to you that the soul is imperishable and immortal, and you think that the philosopher who is confident in death has but a vain and foolish confidence, if he thinks that he will fare better than one who has led another sort of life, in the world below, unless he can prove this; and you say that the strength and divinity of the soul, and of her existence prior to our becoming men, does not necessarily imply her immortality. …For any man, who is not devoid of natural feeling, has reason to fear, if he has no knowledge or proof of the soul's immortality. That is what I suppose you to say, Cebes, which I designedly repeat, in order that nothing may escape us…”

Socrates (-470–-399 BC) classical Greek Athenian philosopher

Plato, Phaedo

Life , Death , Men , World

“Your lack of common sense (can be well judged from the fact) that the evidence of two women is equal to one man, that is a proof of the lack of common sense, and you spend some nights (and days) in which you do not offer prayer and in the month of Ramadan (during the days) you do not observe fast, that is a failing in religion.”

Muhammad (570–632) Arabian religious leader and the founder of Islam

Sahih Muslim, Book 001, Number 0142
Sunni Hadith
Context: It is narrated on the authority of 'Abdullah b. Umar that the Messenger of Allah observed: O womenfolk, you should give charity and ask much forgiveness for I saw you in bulk amongst the dwellers of Hell. A wise lady among them said: Why is it, Messenger of Allah, that our folk is in bulk in Hell? Upon this the Holy Prophet observed: You curse too much and are ungrateful to your spouses. I have seen none lacking in common sense and failing in religion but (at the same time) robbing the wisdom of the wise, besides you. Upon this the woman remarked: What is wrong with our common sense and with religion? He (the Holy Prophet) observed: Your lack of common sense (can be well judged from the fact) that the evidence of two women is equal to one man, that is a proof of the lack of common sense, and you spend some nights (and days) in which you do not offer prayer and in the month of Ramadan (during the days) you do not observe fast, that is a failing in religion. This hadith has been narrated on the authority of Abu Tahir with this chain of transmitters.

Women , Religion , Sense , Night

“The scientist believes in proof without certainty, the bigot in certainty without proof.”

Ashley Montagu (1905–1999) British-American anthropologist

The second sentence is often misquoted as “Science has proof without any certainty. Creationists have certainty without any proof.” or “Religion gives us certainty without proof; science gives us proof without certainty.”
Context: Bigotry and science can have no communication with each other, for science begins where bigotry and absolute certainty end. The scientist believes in proof without certainty, the bigot in certainty without proof. Let us never forget that tyranny most often springs from a fanatical faith in the absoluteness of one’s beliefs.

“It is a giggle full of high spirits and merry mischief, proof that we never lose our girlish selves, no matter what sort of women we become.”

Libba Bray book The Sweet Far Thing

Source: The Sweet Far Thing

Women

“During our recent Human Rights Defenders Forum at The Carter Center, it was reported that between two hundred and three hundred children are sold in Atlanta alone each month! Our city is considered to be one of the preeminent human trafficking centers in the United States, perhaps because we have the busiest airport in the world and because, until recently, the penalty for someone convicted of selling another human being was only a $50 fine. A much heavier penalty of up to twenty years’ imprisonment can be imposed by the federal government, but only if there is proof that the trafficking took place across state lines. An analysis by Atlanta social workers found that 42 percent of the sexual exchanges they investigated were in brothels and hotel rooms in the most affluent areas of the city, while only 9 percent were in the poorer neighborhoods in the vicinity of the airport. Like Kara, they too conclude that the primary culprits are the men who buy sexual favors and the male pimps and brothel owners who control the women and garner most of the financial gains.”

Jimmy Carter book A Call to Action: Women, Religion, Violence, and Power

Source: A Call to Action: Women, Religion, Violence, and Power

Women , Men , Children , World

“I know about people who talk about suffering for the common good. It's never bloody them! When you hear a man shouting "Forward, brave comrades!" you'll see he's the one behind the bloody big rock and the wearing the only really arrow-proof helmet!”

Terry Pratchett (1948–2015) English author

People , Suffering

“Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.”

Douglas Adams (1952–2001) English writer and humorist

Universe

“That some achieve great success, is proof to all that others can achieve it as well.”

Abraham Lincoln (1809–1865) 16th President of the United States

Success , Graduation , Success

“Alack, there lies more peril in thine eye
Than twenty of their swords: look thou but sweet,
And I am proof against their enmity.”

William Shakespeare book Romeo and Juliet

Source: Romeo and Juliet

“I learned that just beneath the surface there's another world, and still different worlds as you dig deeper. I knew it as a kid, but I couldn't find the proof. It was just a kind of feeling. There is goodness in blue skies and flowers, but another force--a wild pain and decay--also accompanies everything.”

David Lynch (1946) American filmmaker, television director, visual artist, musician and occasional actor

Pain , World , Feeling , Flowers

“He helped the Librarian up. There was a red glow in the ape's eyes. It had tried to steal his books. This was probably the best proof any wizard could require that the trolleys were brainless.”

Terry Pratchett book Reaper Man

Source: Reaper Man

Books , Help

“Trifles light as air are to the jealous confirmations strong as proofs of holy writ.”

William Shakespeare Othello

Source: Othello

Light , Strong

“People almost invariably arrive at their beliefs not on the basis of proof but on the basis of what they find attractive.”

Blaise Pascal (1623–1662) French mathematician, physicist, inventor, writer, and Christian philosopher

De l'Art de persuader ["On the Art of Persuasion"], written 1658; published posthumously.
Source: De l'art de persuader

People

“The fact that political ideologies are tangible realities is not a proof of their vitally necessary character. The bubonic plague was an extraordinarily powerful social reality, but no one would have regarded it as vitally necessary.”

Wilhelm Reich book The Mass Psychology of Fascism

Section 3 : Work Democracy versus Politics. The Natural Social Forces for the Mastery of the Emotional Plague;
Variant translation: The fact that political ideologies are tangible, active realities does not prove their necessity. The bubonic plague was an extremely potent social reality. But nobody would have argued that, because it existed, it was necessary and nothing should be done about it.
The Mass Psychology of Fascism (1933), Ch. 10 : Work Democracy

Reality

“A quest for self-respect is proof of its lack”

Ayn Rand book The Fountainhead

Source: The Fountainhead

“That is what I have always understood to be the essence of anarchism: the conviction that the burden of proof has to be placed on authority, and that it should be dismantled if that burden cannot be met.”

Noam Chomsky (1928) american linguist, philosopher and activist

“For one human being to love another: that is perhaps the most difficult of all our tasks, the ultimate, the last test and proof, the work for which all other work is but preparation.”

Rainer Maria Rilke (1875–1926) Austrian poet and writer

Letter Seven (14 May 1904)
Letters to a Young Poet (1934)
Variant: For one human being to love another human being: that is perhaps the most difficult task that has been given to us, the ultimate, the final problem and proof, the work for which all other work is merely preparation.
Source: The Selected Poetry of Rainer Maria Rilke
Context: People have (with the help of conventions) oriented all their solutions toward the easy and toward the easiest side of the easy; but it is clear that we must hold to what is difficult; everything alive holds to it, everything in Nature grows and defends itself in its own way and is characteristically and spontaneously itself, seeks at all costs to be so and against all opposition. We know little, but that we must hold to what is difficult is a certainty that will not forsake us; it is good to be solitary, for solitude is difficult; that something is difficult must be a reason the more for us to do it.
To love is good, too: love being difficult. For one human being to love another: that is perhaps the most difficult of all our tasks, the ultimate, the last test and proof, the work for which all other work is but preparation.

Love

“There's no such thing as love; only proof of love.”

Jean Cocteau (1889–1963) French poet, novelist, dramatist, designer, boxing manager and filmmaker

Love

“The desire for a strong faith is not the proof of a strong faith, rather the opposite. If one has it one may permit oneself the beautiful luxury of skepticism: one is secure enough, fixed enough for it.”

Friedrich Nietzsche book Twilight of the Idols

Source: Twilight of the Idols

Faith , Beauty , Strong

“Alas, that love, so gentle in his view,
Should be so tyrannous and rough in proof!

*It’s sad. Love looks like a nice thing, but it’s actually very rough when you experience it.”

William Shakespeare book Romeo and Juliet

Source: Romeo and Juliet

Love , Sadness

“The very fact that religions are not content to stand on their own feet, but insist on crippling or warping the flexible minds of children in their favour, forms a sufficient proof that there is no truth in them. If there were any truth in religion, it would be even more acceptable to a mature mind than to an infant mind—yet no mature mind ever accepts religion unless it has been crippled in infancy. … The whole basis of religion is a symbolic emotionalism which modern knowledge has rendered meaningless & even unhealthy. Today we know that the cosmos is simply a flux of purposeless rearrangement amidst which man is a wholly negligible incident or accident. There is no reason why it should be otherwise, or why we should wish it otherwise. All the florid romancing about man's "dignity", "immortality", &c. &c. is simply egotistical delusions plus primitive ignorance. So, too, are the infantile concepts of "sin" or cosmic "right" & "wrong". Actually, organic life on our planet is simply a momentary spark of no importance or meaning whatsoever. Man matters to nobody except himself. Nor are his "noble" imaginative concepts any proof of the objective reality of the things they visualise. Psychologists understand how these concepts are built up out of fragments of experience, instinct, & misapprehension. Man is essentially a machine of a very complex sort, as La Mettrie recognised nearly 2 centuries ago. He arises through certain typical chemical & physical reactions, & his members gradually break down into their constituent parts & vanish from existence. The idea of personal "immortality" is merely the dream of a child or savage. However, there is nothing anti-ethical or anti-social in such a realistic view of things. Although meaning nothing in the cosmos as a whole, mankind obviously means a good deal to itself. Therefore it must be regulated by customs which shall ensure, for its own benefit, the full development of its various accidental potentialities. It has a fortuitous jumble of reactions, some of which it instinctively seeks to heighten & prolong, & some of which it instinctively seeks to shorten or lessen. Also, we see that certain courses of action tend to increase its radius of comprehension & degree of specialised organisation (things usually promoting the wished-for reactions, & in general removing the species from a clod-like, unorganised state), while other courses of action tend to exert an opposite effect. Now since man means nothing to the cosmos, it is plan that his only logical goal (a goal whose sole reference is to himself) is simply the achievement of a reasonable equilibrium which shall enhance his likelihood of experiencing the sort of reactions he wishes, & which shall help along his natural impulse to increase his differentiation from unorganised force & matter. This goal can be reached only through teaching individual men how best to keep out of each other's way, & how best to reconcile the various conflicting instincts which a haphazard cosmic drift has placed within the breast of the same person. Here, then, is a practical & imperative system of ethics, resting on the firmest possible foundation & being essentially that taught by Epicurus & Lucretius. It has no need of supernatualism, & indeed has nothing to do with it.”

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

Life , Men , Children , Truth

“Freedom of mind is the real freedom. A person whose mind is not free though he may not be in chains, is a slave, not a free man. One whose mind is not free, though he may not be in prison, is a prisoner and not a free man. One whose mind is not free though alive, is no better than dead. Freedom of mind is the proof of one's existence.”

Bhimrao Ramji Ambedkar (1891–1956) Father of republic India, champion of human rights, father of India's Constitution, polymath, revolutionary…

Political Science for Civil Services Main Examination (2010)

Freedom , Personality , Dead

“If I should ever die, God forbid, let this be my epitaph:
THE ONLY PROOF HE NEEDED
FOR THE EXISTENCE OF GOD
WAS MUSIC”

Kurt Vonnegut (1922–2007) American writer

As quoted in "Vonnegut's Blues For America" Sunday Herald (7 January 2006)
Various interviews

God , Music

“What proofs other than negative have we that the animal is without a surviving, if not immortal, soul? On strictly scientific grounds we can adduce as many arguments pro as contra. To express it clearer, neither man nor animal can offer either proof or disproof of the survival of their souls after death. And from the point of view of scientific experience, it is impossible to bring that which has no objective existence under the cognizance of any exact law of science.”

Helena Petrovna Blavatsky book Isis Unveiled

Source: Isis Unveiled (1877), Volume I, Chapter XII

Death , Law , Soul , Science

“And this proposition is generally true for all progressions and for all prime numbers; the proof of which I would send to you, if I were not afraid to be too long.”

Pierre de Fermat (1601–1665) French mathematician and lawyer

Et cette proposition est généralement vraie en toutes progressions et en tous nombres premiers; de quoi je vous envoierois la démonstration, si je n'appréhendois d'être trop long.
Fermat (in a letter dated October 18, 1640 to his friend and confidant Frénicle de Bessy) commenting on his statement that p divides a<sup> p−1</sup> − 1 whenever p is prime and a is coprime to p (this is what is now known as Fermat's little theorem).

“Superficial knowledge … is hurtful to those who possess true genius; for it necessarily draws them away from their main object, wastes their industry over details and subjects foreign to their needs and natural talent, and lastly does not serve, as they flatter themselves, to prove the breadth of their mind. In all ages there have been men of very moderate intelligence who knew much, and so on the contrary, men of the highest intelligence who knew very little. Ignorance is not lack of intelligence, nor knowledge a proof of genius.”

Luc de Clapiers, Marquis de Vauvenargues (1715–1747) French writer, a moralist

Source: Reflections and Maxims (1746), p. 178.

Men , Age , Intelligence , Nature

“No matter where and how far we look, nowhere do we find a contradiction between religion and natural science. On the contrary, we find a complete concordance in the very points of decisive importance. Religion and natural science do not exclude each other, as many contemporaries of ours would believe or fear. They mutually supplement and condition each other. The most immediate proof of the compatibility of religion and natural science, even under the most thorough critical scrutiny, is the historical fact that the very greatest natural scientists of all times—men such as Kepler, Newton, Leibniz—were permeated by a most profound religious attitude.”

Max Planck (1858–1947) German theoretical physicist

Religion and Natural Science (1937)

Men , Fear , Religion , Nature

“How many times, for instance, have we not heard people speak with all the authority of conviction about the "canine teeth" and "simple stomach" of man, as certain evidence of his natural adaptation for a flesh diet! At least we have demonstrated one fact; that if such arguments are valid, they apply with even greater force to the anthropoid apes—whose "canine" teeth are much longer and more powerful than those of man … And yet, with the solitary exception of man, there is not one of these last which does not in a natural condition absolutely refuse to feed on flesh! M. Pouchet observes that all the details of the digestive apparatus in man, as well as his dentition, constitute "so many proofs of his frugivorous origin"—an opinion shared by Professor Owen, who remarks that the anthropoids and all the quadrumana derive their alimentation from fruits, grains, and other succulent and nutritive vegetable substances, and that the strict analogy which exists between the structure of these animals and that of man clearly demonstrates his frugivorous nature. This is also the view taken by Cuvier, Linnæus, Professor Lawrence, Charles Bell, Gassendi, Flourens, and a great number of other eminent writers.”

Anna Kingsford (1846–1888) English physician, activist and feminist

The Perfect Way in Diet (London: Kegan Paul, Trench & Co., 1881), pp. 13 https://archive.org/stream/perfectwayindie00kinggoog#page/n34-14.

People , Nature , Time , Animals

“To say it once again: today I find it an impossible book — badly written, clumsy and embarrassing, its images frenzied and confused, sentimental, in some places saccharine-sweet to the point of effeminacy, uneven in pace, lacking in any desire for logical purity, so sure of its convictions that it is above any need for proof, and even suspicious of the propriety of proof, a book for initiates, 'music' for those who have been baptized in the name of music and who are related from the first by their common and rare experiences of art, a shibboleth for first cousins in artibus [in the arts] an arrogant and fanatical book that wished from the start to exclude the profanum vulgus [the profane mass] of the 'educated' even more than the 'people'; but a book which, as its impact has shown and continues to show, has a strange knack of seeking out its fellow-revellers and enticing them on to new secret paths and dancing-places.”

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)

People , Secret , Books , Education

“The Bible is such an interesting book to me, because it says so many things that you can't really follow it all, I don't think, can you? So I guess that's why God invented highlighters, so we could find the parts we especially like and mark them up and just follow that, cause I think if you follow any of it, you're doing pretty good, except for the part - my favorite part - did you know the most reiterated command in the whole Bible is the command to sing? Now there must be a reason for that. And uh, that's why I sing. I don't really enjoy it, I think it's hard work. I like writing, but I sing because I figure if you find a command that easy to follow you should do it a whole lot. Cause the rest of them are kinda rough, except the first command, the one to be fruitful and multiply. Most people I know have trouble not keeping that command. That's the thing that cracks me up about you know, proof-texting too. Everyone's proof-texting this book about Christ and Christ Himself said, you know, you search the Scriptures to find life, and you're not gonna find it there. But no one underlined that part, not even my folks, because we live in a time when we have come to believe that there are answers… and I don't know why we believe that. And even more worrisome is I'm not even sure why we ever came to believe that questions are all that important.”

Rich Mullins (1955–1997) American christian musician

Wheaton, Illinois http://www.kidbrothers.net/words/concert-transcripts/wheaton-illinois-sep1590-backup-copy.html (April 11, 1997)
In Concert

Life , God , People , Books

“I thank you most sincerely for your polite notice of me, in the elegant Lines you enclosed; and however undeserving I may be of such encomium and panegyrick, the style and manner exhibit a striking proof of your great poetical Talents. In honour of which, and as a tribute justly due to you, I would have published the Poem, had I not been apprehensive, that, while I only meant to give the World this new instance of your genius, I might have incurred the imputation of Vanity. This and nothing else, determined me not to give it place in the public Prints.”

George Washington (1732–1799) first President of the United States

1770s, Letter to Phyllis Wheatley (1776)

World , Sincerity

“Perhaps no philosopher is more correct than the cynic. The happiness of the animal, that thorough cynic, is the living proof of cynicism.”

Friedrich Nietzsche Untimely Meditations

§ 2.1, cited in Peter Sloterdijk, Critique of Cynical Reason (1987), p. ix
Untimely Meditations (1876)

Animals , Happiness

“When I look at a building, how can I know there was a builder? Can't see him, hear him, touch him, taste him or smell him, so how can I know there was a builder? Well, the building is absolute proof there was a builder. I couldn't want better proof that there was a builder than to have the building as evidence. I don't need faith to believe in a builder, all I need is eyes that can see and a brain that works. Now the same deep, rich, scientific principle works with paintings and painters…. And the same principle works with God. When I look at Creation how can I know there was a creator? Well, creation is absolute proof there was a creator. I don't need faith to believe in a creator, all I need is eyes that can see and a brain that works.”

Ray Comfort (1949) New Zealand-born Christian minister and evangelist

"The Beauty of a Broken Spirit—Atheism", The Way of the Master season 1 episode 7, 2003-05-12

God , Faith , Painting

“My work in the future must be devoted entirely to pure mathematics in its abstract meaning. I shall apply all my strength to bring more light into the tremendous obscurity which one unquestionably finds in analysis. It lacks so completely all plan and system that it is peculiar that so many have studied it. The worst of it is, it has never been treated stringently. There are very few theorems in advanced analysis which have been demonstrated in a logically tenable manner. Everywhere one finds this miserable way of concluding from the special to the general, and it is extremely peculiar that such a procedure has led to do few of the so-called paradoxes. It is really interesting to seek the cause.
In analysis, one is largely occupied by functions which can be expressed as powers. As soon as other powers enter—this, however, is not often the case—then it does not work any more and a number of connected, incorrect theorems arise from false conclusions. I have examined several of them, and been so fortunate as to make this clear. …I have had to be extremely cautious, for the presumed theorems without strict proof… had taken such a stronghold in me, that I was continually in danger of using them without detailed verification.”

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

Way , Mathematics , Study , Light

“These five rules [above] form all that is necessary to render proofs convincing, immutable, and to say all, geometrical; and the eight rules together render them even more perfect.”

Blaise Pascal (1623–1662) French mathematician, physicist, inventor, writer, and Christian philosopher

The Art of Persuasion

Perfection

“Refusal to believe until proof is given is a rational position; denial of all outside of our own limited experience is absurd.”

Annie Besant (1847–1933) British socialist, theosophist, women's rights activist, writer and orator

Annie Besant: An Autobiography (1893) https://books.google.com/books?id=uBA3AQAAMAAJ, p. 357; 3rd edition (1908) https://books.google.com/books?id=5zNPAQAAMAAJ&pg, p. 357

“Many will think they may reasonably blame me by alleging that my proofs are opposed to the authority of certain men held in the highest reverence by their inexperienced judgments; not considering that my works are the issue of pure and simple experience, who is the one true mistress. These rules are sufficient to enable you to know the true from the false — and this aids men to look only for things that are possible and with due moderation — and not to wrap yourself in ignorance, a thing which can have no good result, so that in despair you would give yourself up to melancholy.”

Leonardo Da Vinci (1452–1519) Italian Renaissance polymath

The Notebooks of Leonardo da Vinci (1883), I Prolegomena and General Introduction to the Book on Painting

Men , Thinking , Falseness , Despair

“"In God We Trust." Now then, after that legend had remained there forty years or so, unchallenged and doing no harm to anybody, the President suddenly "threw a fit" the other day, as the popular expression goes, and ordered that remark to be removed from our coinage.
Mr. Carnegie granted that the matter was not of consequence, that a coin had just exactly the same value without the legend as with it, and he said he had no fault to find with Mr. Roosevelt's action but only with his expressed reasons for the act. The President had ordered the suppression of that motto because a coin carried the name of God into improper places, and this was a profanation of the Holy Name. Carnegie said the name of God is used to being carried into improper places everywhere and all the time, and that he thought the President's reasoning rather weak and poor.
I thought the same, and said, "But that is just like the President. If you will notice, he is very much in the habit of furnishing a poor reason for his acts while there is an excellent reason staring him in the face, which he overlooks. There was a good reason for removing that motto; there was, indeed, an unassailably good reason — in the fact that the motto stated a lie. If this nation has ever trusted in God, that time has gone by; for nearly half a century almost its entire trust has been in the Republican party and the dollar–mainly the dollar. I recognize that I am only making an assertion and furnishing no proof; I am sorry, but this is a habit of mine; sorry also that I am not alone in it; everybody seems to have this disease.
Take an instance: the removal of the motto fetched out a clamor from the pulpit; little groups and small conventions of clergymen gathered themselves together all over the country, and one of these little groups, consisting of twenty-two ministers, put up a prodigious assertion unbacked by any quoted statistics and passed it unanimously in the form of a resolution: the assertion, to wit, that this is a Christian country. Why, Carnegie, so is hell. Those clergymen know that, inasmuch as "Strait is the way and narrow is the gate, and few — few — are they that enter in thereat" has had the natural effect of making hell the only really prominent Christian community in any of the worlds; but we don't brag of this and certainly it is not proper to brag and boast that America is a Christian country when we all know that certainly five-sixths of our population could not enter in at the narrow gate.”

Mark Twain (1835–1910) American author and humorist

Statements (c. December 1907), in Mark Twain In Eruption : Hitherto Unpublished Pages About Men And Events (1940) edited by Bernard Augustine De Voto

God , Lie , World , Disease

“The principle of the minority submitting to the majority, the principle of directing Party work from a centre, not infrequently gives rise to attacks on the part of wavering elements, to accusations of "bureaucracy," "formalism," etc. It scarcely needs proof that systematic work by the Party as one whole, and the directing of the struggle of the working class, would be impossible without putting these principles into effect. Leninism in questions of organisation is the unswerving application of these applications of these principles.”

Joseph Stalin (1879–1953) General secretary of the Communist Party of the Soviet Union

Source: The Foundations of Leninism, Ch.8

Question , Parting

“These eight rules [above] contain all the precepts for solid and immutable proofs.”

Blaise Pascal (1623–1662) French mathematician, physicist, inventor, writer, and Christian philosopher

The Art of Persuasion

“Although no conclusive proof exists that GM cereals may be harmful to human beings, and in some regions their use has brought about economic growth which has helped to resolve problems, there remain a number of significant difficulties which should not be underestimated. In many places, following the introduction of these crops, productive land is concentrated in the hands of a few owners due to “the progressive disappearance of small producers, who, as a consequence of the loss of the exploited lands, are obliged to withdraw from direct production”. The most vulnerable of these become temporary labourers, and many rural workers end up moving to poverty-stricken urban areas. The expansion of these crops has the effect of destroying the complex network of ecosystems, diminishing the diversity of production and affecting regional economies, now and in the future. In various countries, we see an expansion of oligopolies for the production of cereals and other products needed for their cultivation. This dependency would be aggravated were the production of infertile seeds to be considered; the effect would be to force farmers to purchase them from larger producers.”

Pope Francis (1936) 266th Pope of the Catholic Church

§ 134
2010s, 2015, Laudato si' : Care for Our Common Home

Problem , Loss , Future , Help

“In default of any other proof, the thumb would convince me of the existence of a God.”

Isaac Newton (1643–1727) British physicist and mathematician and founder of modern classical physics

Reported as something said by Newton in Charles Dickens's All the Year Round https://books.google.es/books?id=bd0NAAAAQAAJ&q=%22the+thumb+would+convince+me+of+the+existence+of+a+God%22+dickens&dq=%22the+thumb+would+convince+me+of+the+existence+of+a+God%22+dickens&hl=es&sa=X&ei=fgHtVJ3BB4WXgwTAzoOwBA&ved=0CCAQ6AEwAA (1864), Vol. 10, p. 346; later found in " The Book of the Hand http://dds.crl.edu/loadStream.asp?iid=28101" (1867) by A R. Craig, S. Low and Marston, p. 51:
"In want of other proofs, the thumb would convince me of the existence of a God; as without the thumb the hand would be a defective and incomplete instrument, so without the moral will, logic, decision, faculties of which the thumb in different degrees offers the different signs, the most fertile and the most brilliant mind would only be a gift without worth."
A slight variant of this is cited as something Newton once "exclaimed" in Human Nature : An Interdisciplinary Biosocial Perspective http://books.google.es/books?id=c6O0AAAAIAAJ&q=In+the+absence+of+any+other+proof,+the+thumb+alone+would+convince+me+of+God's+existence.&dq=In+the+absence+of+any+other+proof,+the+thumb+alone+would+convince+me+of+God's+existence.&hl=es&sa=X&ei=KAkMUuLjL-am2gWtnoHgDg&ved=0CFUQ6AEwBQ, Vol. 1, Issues 7-12 (1978), p. 47: "In the absence of any other proof, the thumb alone would convince me of God's existence."

God

“Let us notice some more of the stale charges against Republicans. You say we are sectional. We deny it. That makes an issue; and the burden of proof is upon you. You produce your proof; and what is it? Why, that our party has no existence in your section — gets no votes in your section. The fact is substantially true; but does it prove the issue? If it does, then in case we should, without change of principle, begin to get votes in your section, we should thereby cease to be sectional. You cannot escape this conclusion; and yet, are you willing to abide by it? If you are, you will probably soon find that we have ceased to be sectional, for we shall get votes in your section this very year. The fact that we get no votes in your section is a fact of your making, and not of ours. And if there be fault in that fact, that fault is primarily yours, and remains so until you show that we repel you by some wrong principle or practice. If we do repel you by any wrong principle or practice, the fault is ours; but this brings you to where you ought to have started — to a discussion of the right or wrong of our principle. If our principle, put in practice, would wrong your section for the benefit of ours, or for any other object, then our principle, and we with it, are sectional, and are justly opposed and denounced as such. Meet us, then, on the question of whether our principle, put in practice, would wrong your section; and so meet it as if it were possible that something may be said on our side. Do you accept the challenge? No? Then you really believe that the principle which our fathers who framed the Government under which we live thought so clearly right as to adopt it, and indorse it again and again, upon their official oaths, is, in fact, so clearly wrong as to demand your condemnation without a moment's consideration.”

Abraham Lincoln (1809–1865) 16th President of the United States

1860s, Allow the humblest man an equal chance (1860)

Question , Change

“The old and oft-repeated proposition "Totum est majus sua parte" [the whole is larger than the part] may be applied without proof only in the case of entities that are based upon whole and part; then and only then is it an undeniable consequence of the concepts "totum" and "pars". Unfortunately, however, this "axiom" is used innumerably often without any basis and in neglect of the necessary distinction between "reality" and "quantity", on the one hand, and "number" and "set", on the other, precisely in the sense in which it is generally false.”

Georg Cantor (1845–1918) mathematician, inventor of set theory

"Über unendliche, lineare Punktmannigfaltigkeiten" in Mathematische Annalen 20 (1882)  Quoted in "Cantor's Grundlagen and the paradoxes of Set Theory" by William W. Tait

Reality , Sense , Parting , Falseness

“Rules for Demonstrations. I. Not to undertake to demonstrate any thing that is so evident of itself that nothing can be given that is clearer to prove it. II. To prove all propositions at all obscure, and to employ in their proof only very evident maxims or propositions already admitted or demonstrated. III. To always mentally substitute definitions in the place of things defined, in order not to be misled by the ambiguity of terms which have been restricted by definitions.”

Blaise Pascal (1623–1662) French mathematician, physicist, inventor, writer, and Christian philosopher

The Art of Persuasion

“If we are to believe he is really alive with all that that implies, then we have to believe without proof. And of course that is the only way it could be. If it could be somehow proved, then we would have no choice but to believe. We would lose our freedom not to believe. And in the very moment that we lost that freedom, we would cease to be human beings. Our love of God would have been forced upon us, and love that is forced is of course not love at all. Love must be freely given. Love must live in the freedom not to love; it must take risks. Love must be prepared to suffer even as Jesus on the Cross suffered, and part of that suffering is doubt.”

Frederick Buechner (1926) Poet, novelist, short story writer, theologian

The Magnificent Defeat (1966)

Love , God , Way , Freedom

“Yes, evolution by descent from a common ancestor is clearly true. If there was any lingering doubt about the evidence from the fossil record, the study of DNA provides the strongest possible proof of our relatedness to all other living things.”

Francis S. Collins (1950) Geneticist; Director of the National Institutes of Health

"Collins: Why this scientist believes in God" http://www.cnn.com/2007/US/04/03/collins.commentary/index.html, editorial, CNN (April 6, 2007)

Study

“Proof itself, of any sort, is impossible, without an axiom (as Godel proved). Thus faith in God is a prerequisite for all proof.”

Jordan Peterson (1962) Canadian clinical psychologist, cultural critic, and professor of psychology

Twitter, November 25, 2013 ( archive http://archive.is/khKVm)
Other

God , Faith

“It has been observed before that images, however beautiful, though faithfully copied from nature, and as accurately represented in words, do not of themselves characterize the poet. They become proofs of original genius only as far as they are modified by a predominant passion; or by associated thoughts or images awakened by that passion; or when they have the effect of reducing multitude to unity, or succession to an instant; or lastly, when a human and intellectual life is transferred to them from the poet's spirit.”

Samuel Taylor Coleridge book Biographia Literaria

Source: Biographia Literaria (1817), Ch. XV

Life , Beauty , Nature , Passion

“Nothing is a better proof of how far humanity has regressed than the impossibility of finding a single nation, a single tribe, among whom birth still provokes mourning and lamentations.”

Emil M. Cioran book The Trouble With Being Born

The Trouble With Being Born (1973)

Birth

“And when you see a man who is repining at the approach of death, is not his reluctance a sufficient proof that he is not a lover of wisdom, but a lover of the body, and probably at the same time a lover of either money or power, or both?”

Socrates (-470–-399 BC) classical Greek Athenian philosopher

Plato, Phaedo

Death , Wisdom , Money , Lovers

“I hate the world and almost all the people in it. I hate the Labour Congress and the journalists who send men to be slaughtered, and the fathers who feel a smug pride when their sons are killed, and even the pacifists who keep saying human nature is essentially good, in spite of all the daily proofs to the contrary. I hate the planet and the human race – I am ashamed to belong to such a species.”

Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist

Letter to Colette, December 28, 1916
1910s

Men , Hate , People , World

“It really is worth the trouble to invent a new symbol if we can thus remove not a few logical difficulties and ensure the rigour of the proofs. But many mathematicians seem to have so little feeling for logical purity and accuracy that they will use a word to mean three or four different things, sooner than make the frightful decision to invent a new word.”

Gottlob Frege (1848–1925) mathematician, logician, philosopher

Gottlob Frege in: Dagobert David Runes (1962). Readings in epistemology, theory of knowledge and dialectics. p. 334

Feeling , Decision

“They ask you for facts, proofs, works, and all you can show them are transformed tears.”

Emil M. Cioran (1911–1995) Romanian philosopher and essayist

The New Gods (1969)

Tear

“Indeed, the crowning proof of their valour and their strength is that they keep up their superiority without harm to others.”

Tacitus book Germania

Source: Germania (98), Chapter 35

“The oppressors alleged that Allah’s proof is invalid, and if we were permitted to speak out, the uncertainty would disappear.”

Muhammad al-Mahdi (869–941) 12th and last Imam in Twelver Shia Islam

Majlisi, Bihārul Anwār, vol.51 p. 4
Religious-based Quotes

“When I happen to be busy, I never give a moment's thought to the "meaning" of anything, particularly of whatever it is I am doing. A proof that the secret of everything is in action and not abstention, that fatal cause of consciousness.”

Emil M. Cioran book The Trouble With Being Born

The Trouble With Being Born (1973)

Secret , Business

“Sharing the code just seems like The Right Thing to Do, it costs us rather little, but it benefits a lot of people in sometimes very significant ways. There are many university research projects, proof of concept publisher demos, and new platform test beds that have leveraged the code. Free software that people value adds wealth to the world.”

John D. Carmack (1970) American computer programmer, engineer, and businessman

Quoted in Brad Cook, "John Carmack: Making the Magic Happen" http://www.apple.com/games/articles/2009/02/johncarmack/ Apple.com

People , World , Way , Universe

“I'm referred to, I see, as 'the biggest banker in modern publishing'. Now there's a line that needed the celebrated Guardian proof-reading.”

Terry Pratchett (1948–2015) English author

Usenet

Reading

“So much of modern mathematical work is obviously on the border-line of logic, so much of modern logic is symbolic and formal, that the very close relationship of logic and mathematics has become obvious to every instructed student. The proof of their identity is, of course, a matter of detail: starting with premisses which would be universally admitted to belong to logic, and arriving by deduction at results which as obviously belong to mathematics, we find that there is no point at which a sharp line can be drawn, with logic to the left and mathematics to the right. If there are still those who do not admit the identity of logic and mathematics, we may challenge them to indicate at what point, in the successive definitions and deductions of Principia Mathematica, they consider that logic ends and mathematics begins. It will then be obvious that any answer must be quite arbitrary.”

Bertrand Russell (1872–1970) logician, one of the first analytic philosophers and political activist

Source: 1910s, Introduction to Mathematical Philosophy (1919), Ch. 18: Mathematics and Logic

Mathematics , Universe , Success

“The ideal of strictly scientific method in mathematics which I have tried to realise here, and which perhaps might be named after Euclid I should like to describe in the following way… The novelty of this book does not lie in the content of the theorems but in the development of the proofs and the foundations on which they are based… With this book I accomplish an object which I had in view in my Begriffsschrift of 1879 and which I announced in my Grundlagen der Arithmetik. I am here trying to prove the opinion on the concept of number that I expressed in the book last mentioned.”

Gottlob Frege (1848–1925) mathematician, logician, philosopher

Vol. 1. pp. 137-140, as cited in: Ralph H. Johnson (2012), Manifest Rationality: A Pragmatic Theory of Argument, p. 87
Grundgesetze der Arithmetik, 1893 and 1903

Lie , Books , Way , Mathematics

“An apparent contradiction of a natural law is only the rarely occurring proof of another natural law.”

Marie von Ebner-Eschenbach (1830–1916) Austrian writer

Ein scheinbarer Widerspruch gegen ein Naturgesetz ist nur die selten vorkommende Betätigung eines andern Naturgesetzes.
Source: Aphorisms (1880/1893), p. 36.

Law , Nature

“In our society today, when we teach the righteous way of life based upon the Theory of judo which embodies the principles of continuous improvement of society, then this righteous life provides a basis of definite proof of this principle and unifies the peoples' way of thinking. Various religious and learned points of view are then made abundantly clear.”

Kanō Jigorō (1860–1938) Japanese educator and judoka

Kodokan Magazine (1974)

Life , People , Way , Thinking

“History is written for the purpose of narration and not in order to give proof.”
Historia et scribitur ad narrandum non ad probandum.

Quintilian (35–96) ancient Roman rhetor

Book X, Chapter I, 31
De Institutione Oratoria (c. 95 AD)

History

“The Author of the piece, is entitled to much credit for the goodness of his Pen: and I could wish he had as much credit for the rectitude of his Heart — for, as Men see thro’ different Optics, and are induced by the reflecting faculties of the Mind, to use different means to attain the same end; the Author of the Address, should have had more charity, than to mark for Suspicion, the Man who should recommend Moderation and longer forbearance — or, in other words, who should not think as he thinks, and act as he advises. But he had another plan in view, in which candor and liberality of Sentiment, regard to justice, and love of Country, have no part; and he was right, to insinuate the darkest suspicion, to effect the blackest designs.
That the Address is drawn with great art, and is designed to answer the most insidious purposes. That it is calculated to impress the Mind, with an idea of premeditated injustice in the Sovereign power of the United States, and rouse all those resentments which must unavoidably flow from such a belief. That the secret Mover of this Scheme (whoever he may be) intended to take advantage of the passions, while they were warmed by the recollection of past distresses, without giving time for cool, deliberative thinking, & that composure of Mind which is so necessary to give dignity & stability to measures, is rendered too obvious, by the mode of conducting the business, to need other proof than a reference to the proceeding.”

George Washington (1732–1799) first President of the United States

1780s, The Newburgh Address (1783)

Love , Men , Secret , Justice

“The folly of mistaking a paradox for a discovery, a metaphor for a proof, a torrent of verbiage for a spring of capital truths, and oneself for an oracle, is inborn in us.”

Paul Valéry (1871–1945) French poet, essayist, and philosopher

Le mal de prendre une hypallage pour une découverte, une métaphore pour une démonstration, un vomissement de mots pour un torrent de connaissances capitales, et soi-même pour un oracle, ce mal naît avec nous.
Introduction to the Method of Leonardo da Vinci (1895)

Truth , Spring

“The persona, the ideal picture of a man as he should be, is inwardly compensated by feminine weakness, and as the individual outwardly plays the strong man, so he becomes inwardly a woman, i. e., the anima, for it is the anima that reacts to the persona. But because the inner world is dark and invisible to the extraverted consciousness, and because a man is all the less capable of conceiving his weaknesses the more he is identified with the persona, the persona's counterpart, the anima, remains completely in the dark and is at once projected, so that our hero comes under the heel of his wife's slipper. If this results in a considerable increase of her power, she will acquit herself none too well. She becomes inferior, thus providing her husband with the welcome proof that it is not he, the hero, who is inferior in private, but his wife. In return the wife can cherish the illusion, so attractive to many, that at least she has married a hero, unperturbed by her own uselessness. This little game of illusion is often taken to be the whole meaning of life.”

C.G. Jung (1875–1961) Swiss psychiatrist and psychotherapist who founded analytical psychology

Two Essays on Analytical Psychology, CW 7 (1957). "The Relations between the Ego and the Unconscious" P.309

Life , World , Game , Strong

“Man has been here 32,000 years. That it took a hundred million years to prepare the world for him is proof that that is what it was done for. I suppose it is, I dunno. If the Eiffel Tower were now representing the world's age, the skin of paint on the pinnacle-knob at its summit would represent man's share of that age; and anybody would perceive that the skin was what the tower was built for. I reckon they would, I dunno.”

Mark Twain (1835–1910) American author and humorist

Was the World Made for Man? (1903): also p. 106, What is man?: and other philosophical writings, Volume 19 of Works, 1993, Mark Twain, Paul Baender, University of California Press

Age , World , Painting

“But what has made this problem special for amateurs is that there's a tiny possibility that there does exist an elegant 17th-century proof.”

Andrew Wiles (1953) British mathematician

Nova Interview

Problem

“A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between proofs and the best mathematician can notice analogies between theories. One can imagine that the ultimate mathematician is one who can see analogies between analogies.”

Stefan Banach (1892–1945) Polish &Ukrainian mathematician

[Beata Randrianantoanina, Narcisse Randrianantoanina, Banach Spaces and Their Applications in Analysis: Proceedings of the International Conference at Miami University, May 22-27, 2006, in Honor of Nigel Kalton's 60th Birthday, http://books.google.com/books?id=1GiwqU-gB_kC&pg=PR5, 2007, Walter de Gruyter, 978-3-11-019449-4, 5]

Imagination , Personality

“Am I not the proof (Hujjat) of the Almighty, being his remembrance upon his creatures? Did not the Holy Prophet of Islam (saww) say, "Hasan and Husayn are two Leaders (Imāms), whether they are sitting or standing"? If I had not done this work (signed the peace treaty), nobody from amongst the Shī‘as would have remained in this world, and everybody would have been killed and annihilated.”

Hasan ibn Ali (624–669) Shia Imam

Shaykh al-Sadūq, Ilal al-Shara'i, vol.1, p. 211
Religious-based Quotes

World , Peace

“The proof of the pudding is in the eating.”

Miguel de Cervantes (1547–1616) Spanish novelist, poet, and playwright

Source: Don Quixote de la Mancha (1605–1615), Part I, Book IV, Ch. 10.

“But this letter is long, Sir, and it is time to conclude it.
I accuse Lt. Col. du Paty de Clam of being the diabolical creator of this miscarriage of justice — unwittingly, I would like to believe — and of defending this sorry deed, over the last three years, by all manner of ludricrous and evil machinations.
I accuse General Mercier of complicity, at least by mental weakness, in one of the greatest inequities of the century.
I accuse General Billot of having held in his hands absolute proof of Dreyfus’s innocence and covering it up, and making himself guilty of this crime against mankind and justice, as a political expedient and a way for the compromised General Staff to save face.
I accuse Gen. de Boisdeffre and Gen. Gonse of complicity in the same crime, the former, no doubt, out of religious prejudice, the latter perhaps out of that esprit de corps that has transformed the War Office into an unassailable holy ark.
I accuse Gen. de Pellieux and Major Ravary of conducting a villainous enquiry, by which I mean a monstrously biased one, as attested by the latter in a report that is an imperishable monument to naïve impudence.
I accuse the three handwriting experts, Messrs. Belhomme, Varinard and Couard, of submitting reports that were deceitful and fraudulent, unless a medical examination finds them to be suffering from a condition that impairs their eyesight and judgement.
I accuse the War Office of using the press, particularly L’Eclair and L’Echo de Paris, to conduct an abominable campaign to mislead the general public and cover up their own wrongdoing.
Finally, I accuse the first court martial of violating the law by convicting the accused on the basis of a document that was kept secret, and I accuse the second court martial of covering up this illegality, on orders, thus committing the judicial crime of knowingly acquitting a guilty man.”

Emile Zola J’accuse…!

J'accuse! (1898)

War , Secret , Justice , Law

“It lays down, as is generally known, that our speculations upon all subjects whatsoever, pass necessarily through three successive stages: a Theological stage, in which free play is given to spontaneous fictions admitting of no proof; the Metaphysical stage, characterized by the prevalence of personified abstractions or entities; lastly, the Positive stage, based upon an exact view of the real facts of the case.”

Auguste Comte (1798–1857) French philosopher

Source: A General View of Positivism (1848, 1856), p. 36

Success

“Dilettantes have not achieved anything lasting even in the applied arts. But they have rendered some service to the highest of all disciplines: philosophy. Montaigne, La Rochefoucauld, Vauvenargues are proof of this.”

Marie von Ebner-Eschenbach (1830–1916) Austrian writer

Dilettanten haben nicht einmal in einer sekundären Kunst etwas Bleibendes geleistet, sich aber verdient gemacht um die höchste aller Wissenschaften, die Philosophie. Den Beweis dafür liefern: Montaigne, La Rochefoucauld, Vauvenargues.
Source: Aphorisms (1880/1893), p. 55.

Art

“I am obliged to interpolate some remarks on a very difficult subject: proof and its importance in mathematics. All physicists, and a good many quite respectable mathematicians, are contemptuous about proof. I have heard Professor Eddington, for example, maintain that proof, as pure mathematicians understand it, is really quite uninteresting and unimportant, and that no one who is really certain that he has found something good should waste his time looking for proof.”

G. H. Hardy (1877–1947) British mathematician

Source: Ramanujan (1940), Ch. I : The Indian mathematician Ramanujan.

Mathematics , Understanding , Time

“To those who have an active belief, reasoned proofs are needless and probably useless.”

Anthony the Great (251–357) Christian saint, monk, and hermit

Book IV, Chapter 17
From St. Athanasius' Life of St. Antony