Quotes about evidence

A collection of quotes on the topic of evidence, other, use, doing.

Quotes about evidence

John Henry Newman photo

“Growth is the only evidence of life.”

John Henry Newman (1801–1890) English cleric and cardinal

Apologia pro Vita Sua http://www.fordham.edu/halsall/mod/newman/apologia1.html (1864).

Robert Oppenheimer photo

“There must be no barriers to freedom of inquiry … There is no place for dogma in science. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any errors.”

Robert Oppenheimer (1904–1967) American theoretical physicist and professor of physics

As quoted in "J. Robert Oppenheimer" by L. Barnett, in Life, Vol. 7, No. 9, International Edition (24 October 1949), p. 58; sometimes a partial version (the final sentence) is misattributed to Marcel Proust.
Context: There must be no barriers to freedom of inquiry … There is no place for dogma in science. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any errors. Our political life is also predicated on openness. We know that the only way to avoid error is to detect it and that the only way to detect it is to be free to inquire. And we know that as long as men are free to ask what they must, free to say what they think, free to think what they will, freedom can never be lost, and science can never regress.

Francis S. Collins photo
Ned Kelly photo
Charles Spurgeon photo
Jodie Foster photo

“I cannot believe in God when there is no scientific evidence for the existence of a supreme being and creator.”

Jodie Foster (1962) American actor, film director and producer

As quoted in Calgary Sun (10 July 2007)

Nora Ephron photo
Terry Pratchett photo

“There is a rumour going around that I have found God. I think this is unlikely because I have enough difficulty finding my keys, and there is empirical evidence that they exist.”

Terry Pratchett (1948–2015) English author

"I create gods all the time - now I think one might exist" (2008)
Context: There is a rumour going around that I have found God. I think this is unlikely because I have enough difficulty finding my keys, and there is empirical evidence that they exist.
But it is true that in an interview I gave recently I did describe a sudden, distinct feeling I had one hectic day that everything I was doing was right and things were happening as they should.
It seemed like the memory of a voice and it came wrapped in its own brief little bubble of tranquillity. I'm not used to this.
As a fantasy writer I create fresh gods and philosophies almost with every new book … But since contracting Alzheimer's disease I have spent my long winter walks trying to work out what it is that I really, if anything, believe.

Evelyn Waugh photo

“[Change is] the only evidence of life.”

Evelyn Waugh (1903–1966) British writer

Source: Brideshead Revisited: The Sacred and Profane Memories of Captain Charles Ryder

John Wooden photo

“If I were ever prosecuted for my religion, I truly hope there would be enough evidence to convict me.”

John Wooden (1910–2010) American basketball coach

Source: Wooden: A Lifetime of Observations and Reflections On and Off the Court

Ayn Rand photo

“The hardest thing to explain is the glaringly evident which everybody has decided not to see.”

Variant: The hardest thing to explain is the glaringly evident which everybody has decided not to see
Source: The Fountainhead

Lynn Margulis photo
Lynn Margulis photo
Christopher Hitchens photo

“That which can be asserted without evidence, can be dismissed without evidence.”

Christopher Hitchens (1949–2011) British American author and journalist

2000s, 2003
Variant: "What can be asserted without proof can be dismissed without proof." in
"What can be asserted without evidence can also be dismissed without evidence." appears by itself in God Is Not Great: How Religion Poisons Everything (2007).
Translation of the Latin phrase "Quod gratis asseritur, gratis negatur.".
Variant: What can be asserted without proof can be dismissed without proof.
Source: god is Not Great: How Religion Poisons Everything
Context: Forgotten were the elementary rules of logic, that extraordinary claims require extraordinary evidence and that what can be asserted without evidence can also be dismissed without evidence.

Abraham Lincoln photo
Aleksandr Solzhenitsyn photo
Nikola Tesla photo
Kent Hovind photo
Jacques-Yves Cousteau photo

“The glory of nature provides evidence that God exists”

Jacques-Yves Cousteau (1910–1997) French naval officer, explorer, conservationist, filmmaker, innovator, scientist, photographer, author and …

as quoted in The Human, the Orchid, and the Octopus: Exploring and Conserving Our Natural World https://books.google.com.mx/books?id=5JAUkrhPJQIC&printsec=frontcover#v=onepage&q&f=false (2010), Ch. 5. Bloomsbury Publishing.

Ronald Reagan photo

“A few months ago I told the American people I did not trade arms for hostages. My heart and my best intentions still tell me that's true, but the facts and the evidence tell me it is not.”

Ronald Reagan (1911–2004) American politician, 40th president of the United States (in office from 1981 to 1989)

television address (4 March 1987)
1980s, Second term of office (1985–1989)

John Toland photo
David Deutsch photo
Mahmud of Ghazni photo

“Swords flashed like lightning amid the blackness of clouds, and fountains of blood flowed like the fall of setting stars. The friends of God defeated their obstinate opponents, and quickly put them to a complete rout. Noon had not arrived when the Musulmans had wreaked their vengeance on the infidel enemies of Allah, killing 15,000 of them, spreading them like a carpet over the ground, and making them food for beasts and birds of prey… The enemy of God, Jaipal, and his children and grandchildren,… were taken prisoners, and being strongly bound with ropes, were carried before the Sultan, like as evildoers, on whose faces the fumes of infidelity are evident, who are covered with the vapours of misfortune, will be bound and carried to Hell. Some had their arms forcibly tied behind their backs, some were seized by the cheek, some were driven by blows on the neck. The necklace was taken off the neck of Jaipal, - composed of large pearls and shining gems and rubies set in gold, of which the value was two hundred thousand dinars; and twice that value was obtained from necks of those of his relatives who were taken prisoners, or slain, and had become the food of the mouths of hyenas and vultures. Allah also bestowed upon his friends such an amount of booty as was beyond all bounds and all calculation, including five hundred thousand slaves, beautiful men and women. The Sultan returned with his followers to his camp, having plundered immensely, by Allah's aid, having obtained the victory, and thankful to Allah… This splendid and celebrated action took place on Thursday, the 8th of Muharram, 392 H., 27th November, 1001 AD.”

Mahmud of Ghazni (971–1030) Sultan of Ghazni

About the defeat of Jaipal. Tarikh Yamini (Kitabu-l Yamini) by Al Utbi, in Elliot and Dowson, Vol. II : Elliot and Dowson, History of India as told by its own Historians, 8 Volumes, Allahabad Reprint, 1964. p. 27 Also quoted (in part) in Jain, Meenakshi (2011). The India they saw: Foreign accounts.
Quotes from Tarikh Yamini (Kitabu-l Yamini) by Al Utbi

George Orwell photo

“Since 1930 I had seen little evidence that the USSR was progressing towards anything that one could truly call Socialism. On the contrary, I was struck by clear signs of its transformation into a hierarchical society, in which the rulers have no more reason to give up their power than any other ruling class.”

George Orwell (1903–1950) English author and journalist

Original preface to Animal Farm; as published in George Orwell: Some Materials for a Bibliography (1953) by Ian R. Willison
Context: I have never visited Russia and my knowledge of it consists only of what can be learned by reading books and newspapers. Even if I had the power, I would not wish to interfere in Soviet domestic affairs: I would not condemn Stalin and his associates merely for their barbaric and undemocratic methods. It is quite possible that, even with the best intentions, they could not have acted otherwise under the conditions prevailing there.
But on the other hand it was of the utmost importance to me that people in western Europe should see the Soviet regime for what it really was. Since 1930 I had seen little evidence that the USSR was progressing towards anything that one could truly call Socialism. On the contrary, I was struck by clear signs of its transformation into a hierarchical society, in which the rulers have no more reason to give up their power than any other ruling class. Moreover, the workers and intelligentsia in a country like England cannot understand that the USSR of today is altogether different from what it was in 1917. It is partly that they do not want to understand (i. e. they want to believe that, somewhere, a really Socialist country does actually exist), and partly that, being accustomed to comparative freedom and moderation in public life, totalitarianism is completely incomprehensible to them.

Muhammad photo

“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.

George Orwell photo

“Everyone believes in the atrocities of the enemy and disbelieves in those of his own side, without ever bothering to examine the evidence.”

George Orwell (1903–1950) English author and journalist

§ 2
"Looking Back on the Spanish War" (1943)
Context: I have little direct evidence about the atrocities in the Spanish civil war. I know that some were committed by the Republicans, and far more (they are still continuing) by the Fascists. But what impressed me then, and has impressed me ever since, is that atrocities are believed in or disbelieved in solely on grounds of political predilection. Everyone believes in the atrocities of the enemy and disbelieves in those of his own side, without ever bothering to examine the evidence.

George Orwell photo
Idegu Ojonugwa Shadrach photo
Leonard Cohen photo
Douglas Adams photo
Bertrand Russell photo
Brandon Mull photo
Lynn Margulis photo
Alice Munro photo
Richard Dawkins photo
Bertrand Russell photo
Richard Dawkins photo
Mark Twain photo
Terry Pratchett photo
Bertrand Russell photo

“Whenever you find yourself getting angry about a difference of opinion, be on your guard; you will probably find, on examination, that your belief is going beyond what the evidence warrants.”

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

Source: The Portable Atheist: Essential Readings for the Nonbeliever

Richard Dawkins photo
Bertrand Russell photo
Bertrand Russell photo
Friedrich Nietzsche photo

“All credibility, all good conscience, all evidence of truth come only from the senses.”

Friedrich Nietzsche (1844–1900) German philosopher, poet, composer, cultural critic, and classical philologist
Carl Sagan photo

“Absence of evidence is not evidence of absence.”

Martin Rees — Sagan refers to this quote in The Demon-Haunted World (1995) (see above)
Misattributed
Source: Cosmos

Lewis Carroll photo
Terry Pratchett photo
Ambrose Bierce photo

“Faith, n. Belief without evidence in what is told by one who speaks without knowledge, of things without parallel.”

Ambrose Bierce (1842–1914) American editorialist, journalist, short story writer, fabulist, and satirist

The Devil's Dictionary (1911)
Source: The Unabridged Devil's Dictionary

“If at first you don’t succeed, destroy all evidence that you tried.” - Chloe Traeger”

Jill Shalvis (1963) American writer

Source: Head Over Heels

Barry Lyga photo
Terry Pratchett photo
Dwight D. Eisenhower photo

“Don't join the book burners. Don't think you are going to conceal faults by concealing evidence that they ever existed. Don't be afraid to go in your library and read every book, as long as that document does not offend our own ideas of decency. That should be the only censorship.”

Dwight D. Eisenhower (1890–1969) American general and politician, 34th president of the United States (in office from 1953 to 1961)

Remarks at the Dartmouth College Commencement Exercises http://www.eisenhower.archives.gov/all_about_ike/quotes.html#censorship (14 June 1953)
1950s

Barack Obama photo
Blaise Pascal photo

“Rules necessary for axioms. Not to demand in axioms any but things perfectly evident.”

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

The Art of Persuasion

Barack Obama photo
Brian Cox (physicist) photo

“We have written the evidence of our existence onto the surface of our planet. Our civilisation has become a beacon, that identifies our planet as home to life.”

Brian Cox (physicist) (1968) English physicist and former musician

Summing up the documentation Wonders of the Solar System, episode 5

Barack Obama photo
Anna Kingsford photo

“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.

Jacob Bronowski photo
Stephen Hawking photo

“We shouldn't be surprised that conditions in the universe are suitable for life, but this is not evidence that the universe was designed to allow for life. We could call order by the name of God, but it would be an impersonal God. There's not much personal about the laws of physics.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Quoted in "Leaping the Abyss" (April 2002) by Gregory Benford, in Reason Magazine http://reason.com/archives/2002/04/01/leaping-the-abyss/4

Nikola Tesla photo
Jordan Peterson photo
Benjamin Disraeli photo
Ray Comfort photo
Koenraad Elst photo
Origen photo
Nikola Tesla photo

“In a crystal we have the clear evidence of the existence of a formative life-principle, and though we cannot understand the life of a crystal, it is none the less a living being.”

Nikola Tesla (1856–1943) Serbian American inventor

In 'The Problem of Increasing Human Energy: With Special Reference to the Harnessing of the Sun’s Energy', Century Illustrated Magazine (Jun 1900), 60, No. 2, 180.

Edgar Allan Poe photo
Bertrand Russell photo
Axel Munthe photo
Stephen Hawking photo

“I regard [the many worlds interpretation] as self-evidently correct. [T. F.: Yet some don't find it evident to themselves. ] Yeah, well, there are some people who spend an awful lot of time talking about the interpretation of quantum mechanics. My attitude — I would paraphrase Goering—is that when I hear of Schrödinger's cat, I reach for my gun.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Heard in person by this contributor when Hawking showed-up in a Caltech physics class taught by Robert Christy in 1980 or '81; when asked about collapse of the state-vector he whispered to his assistant Chris (surname unknown) something at which point Chris stood up and said 'Stephen is paraphrasing Herman Göring by saying "When I hear the words 'Schrödinger's Cat' I reach for my gun."'.
Source: In a conversation with Timothy Ferris (4 April 1983), as quoted in The Whole Shebang (1998) by Timothy Ferris, p. 345 http://books.google.com/books?id=qjYbQ7EBAKwC&lpg=PA345&ots=F6VWymjiPx&dq=%22reach%20for%20my%20revolver%22%20hawking%20-%22oft-made%22&pg=PA345#v=onepage&q=%22reach%20for%20my%20revolver%22%20hawking%20-%22oft-made%22&f=false

Louis Antoine de Saint-Just photo

“One cannot reign innocently: the insanity of doing so is evident. Every king is a rebel and a usurper.”

Louis Antoine de Saint-Just (1767–1794) military and political leader

On ne peut point régner innocemment : la folie en est trop évidente. Tout roi est un rebelle et un usurpateur.
Sur le jugement de Louis XVI (1er discours) http://www.royet.org/nea1789-1794/archives/discours/stjust_jugement_louis16_1_13_11_92.htm, speech to the National Convention (November 13, 1792).

H.P. Lovecraft photo

“My theological beliefs are likely to startle one who has imagined me as an orthodox adherent of the Anglican Church. My father was of that faith, and was married by its rites, yet, having been educated in my mother's distinctively Yankee family, I was early placed in the Baptist sunday school. There, however, I soon became exasperated by the literal Puritanical doctrines, and constantly shocked my preceptors by expressing scepticism of much that was taught me. It became evident that my young mind was not of a religious cast, for the much exhorted "simple faith" in miracles and the like came not to me. I was not long forced to attend the Sunday school, but read much in the Bible from sheer interest. The more I read the Scriptures, the more foreign they seemed to me. I was infinitely fonder on the Graeco-Roman mythology, and when I was eight astounded the family by declaring myself a Roman pagan. Religion struck me so vague a thing at best, that I could perceive no advantage of any one system over any other. I had really adopted a sort of Pantheism, with the Roman gods as personified attributes of deity.... My present opinions waver betwixt Pantheism and rationalism. I am a sort of agnostic, neither affirming nor denying anything.”

H.P. Lovecraft (1890–1937) American author

Letter to Maurice W. Moe (16 January 1915), in Selected Letters I, 1911-1924 edited by August Derleth and Donald Wandrei, p. 10
Non-Fiction, Letters

Noam Chomsky photo
John Allen Paulos photo
Slavoj Žižek photo
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Louis Mountbatten, 1st Earl Mountbatten of Burma photo
Robert Wright photo
Barack Obama photo
Aurelius Augustinus photo

“To such a one my answer is that I have arrived at a nourishing kernel in that I have learnt that a man is not in any difficulty in making a reply according to his faith which he ought to make to those who try to defame our Holy Scripture. When they are able, from reliable evidence, to prove some fact of physical science, we shall show that it is not contrary to our Scripture. But when they produce from any of their books a theory contrary to Scripture, and therefore contrary to the Catholic faith, either we shall have some ability to demonstrate that it is absolutely false, or at least we ourselves will hold it so without any shadow of a doubt. And we will so cling to our Mediator, “in whom are hidden all the treasures of wisdom and knowledge,” that we will not be led astray by the glib talk of false philosophy or frightened by the superstition of false religion. When we read the inspired books in the light of this wide variety of true doctrines which are drawn from a few words and founded on the firm basis of Catholic belief, let us choose that one which appears as certainly the meaning intended by the author. But if this is not clear, then at least we should choose an interpretation in keeping with the context of Scripture and in harmony with our faith. But if the meaning cannot be studied and judged by the context of Scripture, at least we should choose only that which our faith demands. For it is one thing to fail to recognize the primary meaning of the writer, and another to depart from the norms of religious belief. If both these difficulties are avoided, the reader gets full profit from his reading."”

Aurelius Augustinus (354–430) early Christian theologian and philosopher

I, xxi, 41. Modern translation by J.H. Taylor
De Genesi ad Litteram

Bertrand Russell photo

“The fact that a belief has a good moral effect upon a man is no evidence whatsoever in favor of its truth.”

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

BBC Radio Debate on the Existence of God, Russell vs. Copleston (1948)
1940s

Erving Goffman photo
Georges Braque photo

“Evidence exhausts the truth.”

Georges Braque (1882–1963) French painter and sculptor

as quoted in Conversations with Samuel Beckett and Bram van Velde, ed. Charles Juliet, First Dalkey Archive edition, 2009, London and Champaign pp. 60-61
posthumous quotes

Galileo Galilei photo
Mark Twain photo

“Formerly, if you killed a man, it was possible that you were insane—but now, if you, having friends and money, kill a man, it is evidence that you are a lunatic.”

Mark Twain (1835–1910) American author and humorist

"A New Crime", first published as "The New Crime" in the Buffalo Express, 16 April 1870. Anthologized in Mark Twain's Sketches, New and Old‎ http://books.google.com/books?id=5LcIAAAAQAAJ (1875).

Reinhold Niebuhr photo
Theodore Roosevelt photo

“Let us make it evident that we intend to do justice. Then let us make it equally evident that we will not tolerate injustice being done us in return. Let us further make it evident that we use no words which we are not which prepared to back up with deeds, and that while our speech is always moderate, we are ready and willing to make it good. Such an attitude will be the surest possible guarantee of that self-respecting peace, the attainment of which is and must ever be the prime aim of a self-governing people.”

Theodore Roosevelt (1858–1919) American politician, 26th president of the United States

1900s, Speak softly and carry a big stick (1901)
Variant: Let us make it evident that we intend to do justice. Then let us make it equally evident that we will not tolerate injustice being done us in return. Let us further make it evident that we use no words which we are not which prepared to back up with deeds, and that while our speech is always moderate, we are ready and willing to make it good. Such an attitude will be the surest possible guarantee of that self-respecting peace, the attainment of which is and must ever be the prime aim of a self-governing people.

“The use of video evidence is not always conclusive, but it sure beats the memory bank of most witnesses.”

Jack Gibson (1929–2008) Australian rugby league player and coach

Gibson is a massive supporter of modern technology being used in top-grade Rugby League to clear up any decisions that the match referee may not be able to adjudicate on definitively.

Bertrand Russell photo
Blaise Pascal photo
Arthur Schopenhauer photo
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Piet Mondrian photo