Quotes about uncertainty
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“The newer aspects of many fields start with the admission of uncertainty.”

Richard Hamming (1915–1998) American mathematician and information theorist

Methods of Mathematics Applied to Calculus, Probability, and Statistics (1985)
Context: Probability plays a central role in many fields, from quantum mechanics to information theory, and even older fields use probability now that the presence of "noise" is officially admitted. The newer aspects of many fields start with the admission of uncertainty.

Miguel de Unamuno photo

“In the most secret chamber of the spirit of him who believes himself convinced that death puts an end to his personal consciousness, his memory, for ever, and all unknown to him perhaps, there lurks a shadow, a vague shadow, a shadow of uncertainty”

Miguel de Unamuno (1864–1936) 19th-20th century Spanish writer and philosopher

The Tragic Sense of Life (1913), VI : In the Depths of the Abyss
Context: In the most secret chamber of the spirit of him who believes himself convinced that death puts an end to his personal consciousness, his memory, for ever, and all unknown to him perhaps, there lurks a shadow, a vague shadow, a shadow of uncertainty, and while he says within himself, "Well, let us live this life that passes away, for there is no other!" the silence of this secret chamber speaks to him and murmurs, "Who knows!... " These voices are like the humming of a mosquito when the south-west wind roars through the trees in the wood; we cannot distinguish this faint humming, yet nevertheless, merged in the clamor of the storm, it reaches the ear.

Eric Hobsbawm photo

“Uncertainty and unpredictability impended. Compass needles no longer had a North, maps became useless.”

Source: The Age of Extremes (1992), Chapter Eleven, Cultural Revolution, p.338-339
Context: The old moral vocabulary of rights and duties, mutual obligations, sin and virtue, sacrifice, conscience, rewards, and penalties, could no longer be translated into the new language of desired gratification. Once such practices and institutions were no longer accepted as part of a way of ordering society that linked people to each other and ensured social cooperation and reproduction, most of their capacity to structure human social life vanished. They were reduced simply expressions of individuals' preferences, and claims that the law should recognize the supremacy of these preferences. Uncertainty and unpredictability impended. Compass needles no longer had a North, maps became useless.

Douglas Adams photo

“If the Universe came to an end every time there was some uncertainty about what had happened in it, it would never have got beyond the first picosecond. And many of course don’t.”

Dirk Gently's Holistic Detective Agency (1987)
Context: If the Universe came to an end every time there was some uncertainty about what had happened in it, it would never have got beyond the first picosecond. And many of course don’t. It’s like a human body, you see. A few cuts and bruises here and there don’t hurt it. Not even major surgery if it’s done properly. Paradoxes are just the scar tissue. Time and space heal themselves up around them and people simply remember a version of events which makes as much sense as they require it to make.

Gerard Manley Hopkins photo

“You do not mean by mystery what a Catholic does. You mean an interesting uncertainty: the uncertainty ceasing, interest ceases also…”

Gerard Manley Hopkins (1844–1889) English poet

Letter to Robert Bridges (24 October 1883)
Letters, etc
Context: You do not mean by mystery what a Catholic does. You mean an interesting uncertainty: the uncertainty ceasing, interest ceases also... But a Catholic by mystery means an incomprehensible certainty: without certainty, without formulation there is no interest;... the clearer the formulation the greater the interest.

Henri-Frédéric Amiel photo

“Uncertainty is the refuge of hope.”

Henri-Frédéric Amiel (1821–1881) Swiss philosopher and poet

Amiel's journal; the Journal intime of Henri-Frédéric Amiel 1890 (p.368)
Journal Intime (1882), Journal entries
Source: https://archive.org/details/amielsjournaljou00amieiala

Mark W. Clark photo

“The Russians were not interested in teamwork. They wanted to keep things boiling. They were ready to resort to lying, to betrayal, to the repudiation of solemn pledges. They were accustomed to the use of Force. They were skilled in exploiting any sign of weakness or uncertainty or appeasement. This was their national policy.”

Mark W. Clark (1896–1984) American general

Source: From the Danube to the Yalu (1954), p. 493
Context: In the Italian campaign we had demonstrated as never before how a polyglot army could be welded into a team of allies with the strength and unity and determination to prevail over formidable odds. But in Austria and elsewhere in postwar Europe, we had learned another lesson about allies. The Russians were not interested in teamwork. They wanted to keep things boiling. They were ready to resort to lying, to betrayal, to the repudiation of solemn pledges. They were accustomed to the use of Force. They were skilled in exploiting any sign of weakness or uncertainty or appeasement. This was their national policy.

Yoshida Kenkō photo

“The most precious thing in life is its uncertainty.”

Yoshida Kenkō (1283–1350) japanese writer

Essays in Idleness (1967 Columbia University Press, Trns: Donald Keene)
Context: If man were never to fade away like the dews of Adashino never to vanish like the smoke over Toribeyama, but lingered on forever in the world, how things would lose their power to move us! The most precious thing in life is its uncertainty. Consider living creatures- none lives so long a man. The May fly waits not for the evening, the summer cicada knows neither spring nor autumn. What a wonderfully unhurried feeling it is to live even even a single year in perfect serenity.

“We ought to recognize that uncertainty of mind is not all a bad thing. It is a sign that your mind is still alive, still sensitive.”

Halford E. Luccock (1885–1960) American Methodist minister

Keeping Life Out of Confusion (1938)
Context: We ought to recognize that uncertainty of mind is not all a bad thing. It is a sign that your mind is still alive, still sensitive. If you are not at all confused in this day you are dead mentally and spiritually.
There is of course the peace of the cemetery. If you want that you can have it. But you will pay for such complacent serenity with blind eyes which do not see the world's fear and agony; with deaf ears, into which the still sad music of humanity never comes; with deadened nerves and unsensitized conscience.
We will never be brought to confusion, even in such a baffling and muddled world as ours, if we have a faith in a God of love as the ultimate power in the universe. The words "God is love" have this deep meaning: that everything that is against love is ultimately doomed and damned.

Ernest Flagg photo

“Clarity or Decision. …without it there is uncertainty, hesitation, obscurity, instability… incomparable with good art. The meaning and object of the design should be clear… it should be frank, as the French say.”

Ernest Flagg (1857–1947) American architect

Small Houses: Their Economic Design and Construction (1922)
Context: Clarity or Decision.... without it there is uncertainty, hesitation, obscurity, instability... incomparable with good art. The meaning and object of the design should be clear... it should be frank, as the French say.

Freeman Dyson photo
David Hume photo

“The whole is a riddle, an aenigma, an inexplicable mystery. Doubt, uncertainty, suspence of judgment appear the only result of our most accurate scrutiny, concerning this subject.”

Part XV - General corollary
The Natural History of Religion (1757)
Context: The whole is a riddle, an aenigma, an inexplicable mystery. Doubt, uncertainty, suspence of judgment appear the only result of our most accurate scrutiny, concerning this subject. But such is the frailty of human reason, and such the irresistible contagion of opinion, that even this deliberate doubt could scarcely be upheld; did we not enlarge our view, and opposing one species of superstition to another, set them a quarrelling; while we ourselves, during their fury and contention, happily make our escape, into the calm, though obscure, regions of philosophy.

Baruch Spinoza photo

“The experience Spinoza records… establishes… the moment of extreme doubt , fear, and uncertainty that precedes the dawn of revelation. …the journey …is one trodden by poets, philosophers, and theologians too numerous to mention, who for millennia have recorded this feeling”

Baruch Spinoza (1632–1677) Dutch philosopher

Matthew Stewart, The Courtier and the Heretic (2006)
Context: For Spinoza, philosophy originates in the very personal... feeling of emptiness that in the philosophical tradition has earned the distinguished name of contemptu mundi, the contempt for worldly things, or, better, vanitas.... Spinoza says that... success in life is just a postponement of failure;... pleasure is just a fleeting respite from pain; and... the objects of our striving are vain illusions....
The feeling of vanitas Spinoza describes is... a dire encounter with the prospect of descent into absolute nothingness, a life without significance coming to a meaningless end.... The experience Spinoza records... establishes... the moment of extreme doubt, fear, and uncertainty that precedes the dawn of revelation.... the journey... is one trodden by poets, philosophers, and theologians too numerous to mention, who for millennia have recorded this feeling that life is a useless passion, a wheel of ceaseless striving, a tale told by an idiot, full of sound and fury, signifying nothing, and so on.<!--pp. 55-56

George Bernard Shaw photo

“It means that nothing is certain but uncertainty. If I bind the future I bind my will. If I bind my will I strangle creation.”

George Bernard Shaw (1856–1950) Irish playwright

The Serpent, in Pt. I, Act I
1920s, Back to Methuselah (1921)
Context: I make no vows. I take my chance. … It means that I fear certainty as you fear uncertainty. It means that nothing is certain but uncertainty. If I bind the future I bind my will. If I bind my will I strangle creation.

Jon Krakauer photo

“I've come to terms with the fact that uncertainty is an inescapable corollary of life. An abundance of mystery is simply part of the bargain — which doesn't strike me as something to lament.”

Jon Krakauer (1954) American outdoors writer and journalist

Author's Remarks.
Under the Banner of Heaven: A Story of Violent Faith (2003)
Context: I don't know what God is, or what God had in mind when the universe was set in motion. In fact, I don't know if God even exists, although I confess that I sometimes find myself praying in times of great fear, or despair, or astonishment at a display of unexpected beauty. There are some ten thousand religious sects — each with its own cosmology, each with its own answer for the meaning of life and death. Most assert that the other 9,999 not only have it completely wrong but are instruments of evil, besides. None of the ten thousand has yet persuaded me to make the requisite leap of faith. In the absence of conviction, I've come to terms with the fact that uncertainty is an inescapable corollary of life. An abundance of mystery is simply part of the bargain — which doesn't strike me as something to lament. Accepting the essential inscrutability of existence, in any case, is surely preferable to its opposite: capitulating to the tyranny of intransigent belief. And if I remain in the dark about our purpose here, and the meaning of eternity, I have nevertheless arrived at an understanding of a few modest truths: Most of us fear death. Most of us yearn to comprehend how we got here, and why — which is to say, most of us ache to know the love of our creator. And we will no doubt feel that ache, most of us, for as long as we happen to be alive.

Peter Gabriel photo

“It’s only in uncertainty
That we’re naked and alive.”

Peter Gabriel (1950) English singer-songwriter, record producer and humanitarian

That Voice Again, written by Peter Gabriel and David Rhodes
Song lyrics, So (1986)
Context: I’m hearing right and wrong so clearly.
There must be more than this.
It’s only in uncertainty
That we’re naked and alive.

John Boyega photo
Liu Cixin photo

“As a child, I witnessed a great deal of violence and persecution as well as social unrest during The Cultural Revolution...This experience has made me understand the complexity of human nature and society—I’ve realized that the future of human civilization is also full of danger and uncertainty. Such understanding is manifested in my science fiction novels…”

Liu Cixin (1963) Chinese science fiction writer

On how his childhood experiences shaped his writings in “In the Author’s Universe: Interview with Sci-Fi Author Cixin Liu” https://vocal.media/futurism/in-the-authors-universe-interview-with-sci-fi-author-cixin-liu in Vocal (2016)

“Randomness, chaos, uncertainty, and chance are all a part of our lives. They reside at the ill-defined boundaries between what we know, what we can know, and what is beyond our knowing. They make life interesting.”

Ivars Peterson (1948) Canadian mathematician

Source: The Jungles of Randomness: A Mathematical Safari (1997), Chapter 10, “Lifetimes of Chance” (p. 202)

Jack Vance photo

“Humanity many times has had sad experience of superpowerful police forces…As soon as (the police) slip out from under the firm thumb of a suspicious local tribune, they become arbitrary, merciless, a law unto themselves. They think no more of justice, but only of establishing themselves as a privileged and envied elite. They mistake the attitude of natural caution and uncertainty of the civilian population as admiration and respect, and presently they start to swagger back and forth, jingling their weapons in megalomaniac euphoria. People thereupon become not masters, but servants. Such a police force becomes merely an aggregate of uniformed criminals, the more baneful in that their position is unchallenged and sanctioned by law. The police mentality cannot regard a human being in terms other than as an item or object to be processed as expeditiously as possible. Public convenience or dignity means nothing; police prerogatives assume the status of divine law. Submissiveness is demanded. If a police officer kills a civilian, it is a regrettable circumstance: the officer was possibly overzealous. If a civilian kills a police officer all hell breaks loose. The police foam at the mouth. All other business comes to a standstill until the perpetrator of this most dastardly act is found out. Inevitably, when apprehended, he is beaten or otherwise tortured for his intolerable presumption. The police complain that they cannot function efficiently, that criminals escape them. Better a hundred unchecked criminals than the despotism of one unbridled police force.”

Source: Demon Princes (1964-1981), The Star King (1964), Chapter 3 (pp. 32-33)

Carl Sagan photo
Roy Jenkins photo
H. G. Wells photo
Julius Evola photo

“Christianity is at the root of the evil that has corrupted the West. This is the truth, and it does not admit uncertainty.”

Imperialismo Pagano (1928) · Excerpts http://www.juliusevola.net/excerpts/Tradition_of_the_Mysteries_against_Christianity.html

Gabriel García Márquez photo
Bill McKibben photo
Marilyn Ferguson photo

“Another discovery: uncertainty. Not just the uncertainty of the moment, which may pass, but oceanic uncertainty, mystery that washes across our beaches forever.”

Marilyn Ferguson (1938–2008) American writer

The Aquarian Conspiracy (1980), Chapter Four, People Changing

Mark Drakeford photo

“This must be done quickly - we cannot afford the economic damage being done every single day as a result of Brexit uncertainty.”

Mark Drakeford (1954) First Minister of Wales

Brexit: Force new EU poll on next PM, says Mark Drakeford https://www.bbc.co.uk/news/uk-wales-politics-48771928 BBC News (26 June 2019)
2019

Leanne Wood photo
Johann Gottlieb Fichte photo

“But how shall the condition, the true subjection of the other to the law, be given? Not through signs of repentance, promises of future better behavior, offers of damages, etc.; for there is no ground to believe his sincerity. It is quite as possible that he has been forced by his present weakness into this repentance, and is only awaiting a better opportunity to renew the attack. This uncertainty does not warrant the other in laying down his arms and thus again exposing all his safety. He will, therefore, continue to exercise his compulsion; but since the condition of the right is problematical, his exercise also will be problematical. t is the same with the violator. If he has offered the complete restitution which the law inevitably requires, and it being possible that he may now have voluntarily subjected himself in all sincerity to the law, it is also likely that he will oppose any further restriction of his freedom, (any further compulsion by the other,) but his right to make this opposition is also problematical. It seems, therefore, that the decisive point can not be ascertained, since it rests in the ascertainment of inner sincerity, which can not be proved, but is a matter of conscience for each. The ground of decision, indeed, could be given only, if it were possible to ascertain the whole future life of the violator.”

Johann Gottlieb Fichte (1762–1814) German philosopher

Source: The Science of Rights 1796, P. 145

George Klir photo

“Among the various paradigmatic changes in science and mathematics in this century, one such change concerns the concept of uncertainty.”

George Klir (1932–2016) American computer scientist

In science, this change has been manifested by a gradual transition from the traditional view, which insists that uncertainty is undesirable in science and should be avoided by all possible means, to an alternative view, which is tolerant of uncertainty and insists that science cannot avoid it. According to the traditional view, science should strive for certainty in all its manifestations (precision, specificity, sharpness, consistency, etc.); hence, uncertainty (imprecision, nonspecificity, vagueness, inconsistency,etc.) is regarded as unscientific. According to the alternative (or modem) view, uncertainty is considered essential to science; it is not only an unavoidable plague, but it has, in fact, a great utility.
Source: Fuzzy sets and fuzzy logic (1995), p. 1.

Olivier Blanchard photo

“Crises feed uncertainty. And uncertainty affects behaviour, which feeds the crisis.”

Olivier Blanchard (1948) French economist

Economics focus: (Nearly) nothing to fear but fear itself (2009) https://www.economist.com/node/13021961/all-comments?page=1,

Marilyn Ferguson photo

“In this time of uncertainty, when all our old social forms are crumbling, when we cannot easily find our way, we can be lights to each other.”

Marilyn Ferguson (1938–2008) American writer

Source: The Aquarian Conspiracy (1980), Chapter Twelve, Human Connections: Relationships Changing, p. 403

Robert Sheckley photo
Kenneth Arrow photo
Richard Feynman photo
Richard Feynman photo

“I can live with doubt, and uncertainty, and not knowing. I think it's much more interesting to live not knowing than to have answers which might be wrong. I have approximate answers, and possible beliefs, and different degrees of certainty about different things, but I'm not absolutely sure of anything. There are many things I don't know anything about, such as whether it means anything to ask "Why are we here?"”

I might think about it a little bit, and if I can't figure it out then I go on to something else. But I don't have to know an answer. I don't feel frightened by not knowing things, by being lost in the mysterious universe without having any purpose — which is the way it really is, as far as I can tell. Possibly. It doesn't frighten me.
Source: No Ordinary Genius (1994), p. 239, from interview in "The Pleasure of Finding Things Out" (1981): video http://www.youtube.com/watch?v=NEwUwWh5Xs4&t=48m10s

Isaac Asimov photo
Park Geun-hye photo
Medea Benjamin photo

“NATO's failure to seriously examine its own role in what it euphemistically calls "uncertain times" should be more alarming to Americans and Europeans than its one-sided criticisms of Russia and China, whose contributions to the uncertainty of our times pale by comparison.”

Medea Benjamin (1952) American political activist and author

Medea Benjamin and Nicolas J. S. Davies, What Planet Is NATO Living On? It's No Longer Useful to This One Salon https://www.salon.com/2021/02/25/what-planet-is-nato-living-on-because-its-no-longer-useful-on-this-one/, (24 February 2021)

George Bernard Shaw photo
Alice A. Bailey photo
Milan Stipić photo
Laurence Tribe photo

“Impeachment requires good judgment amid uncertainty, not a preprinted checklist of relevant considerations...”

Laurence Tribe (1941) American lawyer and law school professor

To End a Presidency (2018)

Tara Westover photo