Quotes about certainty
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“These worst mornings with cold floors and hot windows and merciless light—the soul’s certainty that the day will have to be not traversed but sort of climbed, vertically, and then that going to sleep again at the end of it will be like falling, again, off something tall and sheer.”

David Foster Wallace book Infinite Jest

Infinite Jest (1996)

Soul, Sleep, Light

“If it were right to overstep a little the limits of apodictic certainty befitting metaphysics, it would seem worth while to trace out some things pertaining not merely to the laws but even to the causes of sensuous intuition, which are only intellectually knowable. Of course the human mind is not affected by external things, and the world does not lie open to its insight infinitely, except as far as itself together with all other things is sustained by the same infinite power of one. Hence it does not perceive external things but by the presence of the same common sustaining cause; and hence space, which is the universal and necessary condition of the joint presence of everything known sensuously, may be called the phenomenal omnipresence, for the cause of the universe is not present to all things and everything, as being in their places, but their places, that is the relations of the substances, are possible, because it is intimately present to all. Furthermore, since the possibility of the changes and successions of all things whose principle as far as sensuously known resides in the concept of time, supposes the continuous existence of the subject whose opposite states succeed; that whose states are in flux, lasting not, however, unless sustained by another; the concept of time as one infinite and immutable in which all things are and last, is the phenomenal eternity of the general cause} But it seems more cautious to hug the shore of the cognitions granted to us by the mediocrity of our intellect than to be carried out upon the high seas of such mystic investigations, like Malebranche, whose opinion that we see all things in God is pretty nearly what has here been expounded.”

Immanuel Kant (1724–1804) German philosopher

Kant's Inaugural Dissertation (1770), Section IV On The Principle Of The Form Of The Intelligible World

God, Lie, World, Law

“He had the high degree of courage so common in the human race, a race capable of conceiving death, yet able to face its probability daily, on the highway, on the obstetrics table, on the battlefield, in the air, in the subway—and to face lightheartedly the certainty of death in the end.”

Robert A. Heinlein book Goldfish Bowl

Goldfish Bowl (p. 381)
Short fiction, Off the Main Sequence (2005)

Death, Courage

“The trouble with sharing too many beds was that one’s chance of running into a really bad situation was improved almost to certainty.”

Larry Niven (1938) American writer

A Kind of Murder (p. 66)
Short fiction, A Hole in Space (1974)

Bad luck, Chance

“We absolutely must leave room for doubt or there is no progress and no learning. There is no learning without having to pose a question. And a question requires doubt. People search for certainty. But there is no certainty. People are terrified — how can you live and not know?”

Richard Feynman book The Pleasure of Finding Things Out

It is not odd at all. You only think you know, as a matter of fact. And most of your actions are based on incomplete knowledge and you really don't know what it is all about, or what the purpose of the world is, or know a great deal of other things. It is possible to live and not know.
from lecture "What is and What Should be the Role of Scientific Culture in Modern Society", given at the Galileo Symposium in Italy (1964)
The Pleasure of Finding Things Out (1999)

People, Search, Question, Learning

“The principle itself of dogmatic religion, dogmatic morality, dogmatic philosophy, is what requires to be rooted out; not any particular manifestation of that principle. ¶ The very corner-stone of an education intended to form great minds, must be the recognition of the principle, that the object is to call forth the greatest possible quantity of intellectual power, and to inspire the intensest love of truth: and this without a particle of regard to the results to which the exercise of that power may lead, even though it should conduct the pupil to opinions diametrically opposite to those of his teachers. We say this, not because we think opinions unimportant, but because of the immense importance which we attach to them; for in proportion to the degree of intellectual power and love of truth which we succeed in creating, is the certainty that (whatever may happen in any one particular instance) in the aggregate of instances true opinions will be the result; and intellectual power and practical love of truth are alike impossible where the reasoner is shown his conclusions, and informed beforehand that he is expected to arrive at them.”

John Stuart Mill (1806–1873) British philosopher and political economist

"Civilization," London and Westminster Review (April 1836)

Love, Truth, Education, Making love

“It is altogether reasonable to conclude that the heavenly bodies, alias worlds, which move or are situate within the circle of our knowledge, as well all others throughout immensity, are each and every one of them possessed or inhabited by some intelligent agents or other, however different their sensations or manners of receiving or communicating their ideas may be from ours, or however different from each other. For why would it not have been as wise or as consistent with the perfections which we adore in God, to have neglected giving being to intelligence in this world as in those other worlds, interspersed with another of various qualities in his immense creation? And inasmuch as this world is thus replenished, we may, with the highest rational certainty infer, that as God has given us to rejoice, and adore him for our being, he has acted consistent with his goodness, in the display of his providence throughout the university of worlds.”

Ethan Allen (1738–1789) American general

Source: Reason: The Only Oracle Of Man (1784), Ch. II Section III - Of The Eternity and Infinitude of Divine Providence

God, World, Intelligence, Communication

“We humans have a deep need to think highly of ourselves. If that opinion of our goodness, greatness, and brilliance diverges enough from reality, we become grandiose. We imagine our superiority. Often a small measure of success will elevate our natural grandiosity to even more dangerous levels. Our high self-opinion has now been confirmed by events. We forget the role that luck may have played in the success, or the contributions of others. We imagine we have the golden touch. Losing contact with reality, we make irrational decisions. That is why our success often does not last. Look for the signs of elevated grandiosity in yourself and in others—overbearing certainty in the positive outcome of your plans; excessive touchiness if criticized; a disdain for any form of authority. Counteract the pull of grandiosity by maintaining a realistic assessment of yourself and your limits. Tie any feelings of greatness to your work, your achievements, and your contributions to society.”

Robert Greene (1959) American author

Chap. 11 : Know Your Limits
The Laws of Human Nature (2018)

Bad luck, Making love, Feeling, Imagination

“A maxim for the twenty-first century might well be to start not by fighting evil in the name of good, but by attacking the certainties of people who claim always to know where good and evil are to be found. We should struggle not against the devil himself but what allows the devil to live — Manichaean thinking itself.”

Tzvetan Todorov (1939–2017) Bulgarian historian, philosopher, structuralist literary critic, sociologist and essayist

paraphrased variant:
We should not be simply fighting evil in the name of good, but struggling against the certainties of people who claim always to know where good and evil are to be found.
Source: Hope and Memory: Reflections on the Twentieth Century (2003), Ch. 5 : The Past in the Present, p. 195

People, Thinking, Evil, Fight

“The detour to ideality leads to coinciding with oneself, that is, to certainty, which remains the guide and guarantee of the whole spiritual adventure of being.”

Emmanuel Levinas (1906–1995) French philosopher

The Levinas reader by Levinas, Emmanuel p. 89

“Having been involved in a couple of lawsuits as an expert probability witness and having observed that a prudent skepticism is often less prized than an indefensible certainty, I turned down preliminary requests from both sides to testify.”

John Allen Paulos book A Mathematician Reads the Newspaper

Source: A Mathematician Reads the Newspaper (1995), Chapter 9, “Fraud Alleged in Pennsylvania Senate Race” (p. 45)

“We begin to see the unease and disease of our adult lives as elaborate patterns that emerged from a system that taught us young how to be still, look backward, look to authority, construct certainties. The fear of learning—and transformation—is the inevitable product of such a system.”

Marilyn Ferguson (1938–2008) American writer

The Aquarian Conspiracy (1980), Chapter Nine, Flying and Seeing: New Ways to Learn

Fear, Disease, Learning

“It is conceivable that the point here is not that we do not see the problems in our processes, but rather that we do not want to see them because that would undermine the sense of certainty we have about how our factory is working.”

Mike Rother (1958) American business academic

Problem, Sense

“There are perhaps only three things we can and need to know with certainty: where we are, where we want to be, and by what means we should maneuver the unclear territory between here and there.”

Mike Rother (1958) American business academic

“Unfortunately, scholars tend to cite a colleague's mere hypothesis as an argument of authority. So many certainties in this field are merely someone’s casual opinion quoted over and over again.”

Koenraad Elst (1959) orientalist, writer

2000s, Asterisk in bharopiyasthan: Minor writings on the Aryan invasion debate (2007)

Quotes

“We know with certainty that never could man have acquired the sciences and arts by himself guided only by his natural abilities and without the benefit of instruction. (This applies, e.g., to) medicine, the knowledge of the physiological temperaments, the diseases and their causes, in all their numerous varieties, and the invention of adequate treatment and cure of each of them by drugs or preparations, which could never have been actually tried out. For how could anyone test every prescription on every disease since this would take tens of thousands of years and necessitate the examination of every sick person in the world?”

Ibn Hazm (994–1064) Arab theologian

Regarding the role of experiment and observation, Ibn Hazm: Kitab al-fisal fi’l-milal wa-l-ahwa wa-l-nihal, 5 parts in two vols; Cairo, 1899 and 1903; Vol I, p. 72.

World, Disease, Art, Nature

“A man must be either conscientiously scientific in his approach or frankly speculative. What he must not do is present his speculative untested ideas in a manner and style of dogmatic certainty that they are not entitled to claim. This is being pseudo-scientific.”

J.B. Priestley (1894–1984) English writer

Source: Man and Time (1964), Ch. 11, p. 271

Idea

“...the French business is no light or trivial thing, or such as has commonly occurd in the course of political Events. At present the whole political State of Europe hinges upon it. On the Continent there is little doubt; every thing will take is future shape and colour from the good or ill success of the Duke of Brunswick. In my opinion, it is the most important crisis that ever existed in the World. ... My poor opinion is, that these principles...cannot possibly be realized in practice in France, without an absolute certainty and that at no remote period, of overturning the whole fabrick of the British Constitution.”

Edmund Burke (1729–1797) Anglo-Irish statesman

1790s
Source: Letter to the Foreign Secretary Lord Grenville (19 September 1792), quoted in P. J. Marshall and John A. Woods (eds.), The Correspondence of Edmund Burke, Volume VII: January 1792–August 1794 (1968), pp. 218-219

World, Business, Light, Success

“It is a most important decision that we make as a nation. But all of you have lived through the last four years and have seen the significance of space and the adventures in space, and no one can predict with certainty what the ultimate meaning will be of mastery of space. I believe we should go to the moon. But I think every citizen of this country as well as the Members of the Congress should consider the matter carefully in making their judgment, to which we have given attention over many weeks and months, because it is a heavy burden, and there is no sense in agreeing or desiring that the United States take an affirmative position in outer space, unless we are prepared to do the work and bear the burdens to make it successful. If we are not, we should decide today and this year.”

John F. Kennedy (1917–1963) 35th president of the United States of America

Source: 1961, Speech to Special Joint Session of Congress

Making love, Thinking, Decision, Sense

“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?"”

Richard Feynman book The Pleasure of Finding Things Out

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. <br class="br">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

Thinking

“Someone asked: "What is meaning of certainty? " He replied, it is the name of inner voice, and the folk of certainty arrive at the gnosis. And the meaning of certainty is that every affliction be considered sent by Allah.”

Sufyan al-Thawri (716–778) Muslim Scholar and founder of Thawri Madhhab

Source: The Sayings and Teachings of the Great Mystics of Islam (2004), p. 29

Affliction

“What! all of us, Christians, not only profess to love one another, but do actually live one common life; we whose social existence beats with one common pulse—we aid one another, learn from one another, draw ever closer to one another to our mutual happiness, and find in this closeness the whole meaning of life!—and to-morrow some crazy ruler will say some stupidity, and another will answer in the same spirit, and then I must go expose myself to being murdered, and murder men—who have done me no harm—and more than that, whom I love. And this is not a remote contingency, but the very thing we are all preparing for, which is not only probable, but an inevitable certainty.”

Leo Tolstoy The Kingdom of God Is Within You

Source: The Kingdom of God is Within You (1894), Chapter V, Contradiction Between our Life and our Christian Conscience

Love, Life, Men, Happiness

“We have avoided the post-colonial nightmares of many a former British subject. Though that may arguably be because we were a nation, and not a randomly drawn jurisdiction without regard to ethnic loyalties or geographical sense, as were so many of the “countries” that emerged from Empire. We pride ourselves, not without cause, with only one Civil War since the foundation of the State and none within the 26 county area since the enactment of said Constitution. All’s well that ends well? Except that history is a process not a destination, and “well” or not it certainly hasn’t ended. And the foundational legal document of the State grows more convoluted with each amendment and increasingly difficult to define, even in the ordinary sense of a degree of certainty.”

Justin Barrett (1971) Irish activist

A New Constitution for a Real Republic https://nationalparty.ie/new-year-message-2020/ (July 27, 2018)

War, History, Sense, Loyalty

“No matter which way I go I know now that I will never have peace.
For peace is certainty, and there is no certainty but death.”

Leigh Brackett book The Long Tomorrow

Source: The Long Tomorrow (1955), Chapter 29

Death, Peace, Way

“The metaphysics that a new generation is imbibing and everyone else is being force-fed has many points of instability, is grounded in a desire to express certainty about things we do not know, and to be wildly dismissive and relativistic about things that we actually do know.”

Douglas Murray (1979) British political commentator and far-right activist

The Madness of Crowds: Gender, Race and Identity (2019)

“Sir, there are three principles, greater than all others, on which, in my opinion, all good finance should be based. The first of them is that there should always be a certainty that whatever the charge may be it can be paid. That, I believe, is of vital importance. The second is that, in times of peace and prosperity, the people of the country should reduce their Debt; and the third point is that they should reduce their Expenditure.”

William Ewart Gladstone (1809–1898) British Liberal politician and prime minister of the United Kingdom

Speech http://hansard.millbanksystems.com/commons/1882/apr/24/ways-and-means-financial-statement#column_1298 in the House of Commons (24 April 1882) <br class="br">1880s

People, Peace, Time, Country

“I am, somehow, less interested in the weight and convolutions of Einstein’s brain than in the near certainty that people of equal talent have lived and died in cotton fields and sweatshops. […] We know nothing about them because of the survivorlship bias.””

Stephen Jay Gould book The Panda's Thumb

"Wide hats and narrow minds" https://books.google.com/books?id=-lWtVSZoqWkC&pg=PA776 New Scientist 8 March 1979, p. 777. Reprinted in The Panda's Thumb, p. 151 https://books.google.com/books?id=z0XY7Rg_lOwC&pg=PA151.

People

“We will not lose hope because we have the certainty that our destiny is not in the hands of a man or a superpower. Our destiny is in the hands of God, a Provident Father. It is in Him, and only in Him, that our salvation lies.”

Georges Abou Khazen (1947) Syrian bishop

Syria: Mgr. Khazen (Aleppo), “they are dividing the garments of our country” https://www.agensir.it/quotidiano/2018/2/12/syria-mgr-khazen-aleppo-they-are-dividing-the-garments-of-our-country/ (12 February 2018)

God, Hope

“We burn with longing to find some firm stance, some ultimate, unshakable basis, on which we may build the tower that can reach up to infinity. But all our foundations crack and earth opens to the abyss. THEREFORE LET US NOT SEEK CERTAINTY OR SECURITY.”

Lev Shestov (1866–1938) Russian theologian

Source: In Job's Balances: on the sources of the eternal truths, Gethsemane Night - Pascal's Philosophy p. 284-285

“Love leads to knowledge of the Divine mysteries and those who love abide in God and look to Him only, and He is nearer to them than all else and to them in given a vision of Him unveiled and they see Him with the eye of certainty.”

Abu Talib al-Makki Scholar, mystic

Source: The Sayings and Teachings of the Great Mystics of Islam (2004), p. 86

Love, God, Knowledge

“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.”

George Bernard Shaw Back to Methuselah

The Serpent, in Pt. I, Act I
1920s, Back to Methuselah (1921)

Fear, Chance, Future

“This is the miracle of abstract painting: it constructs the unlimited monumentality of a work that no longer has a foothold in the visible world, that ignores its rules and does not seek anything from it, neither aid nor sanction, and that emerges with the pure force and infinite certainty of life. Withdrawn from the weight of things and from the inertial systems in which things are held and have their limited possibilities circumscribed, the work of art proceeds from the imagination. To imagine is to posit something other than what is and what is there right in front of us -- something other than the world. To imagine is to posit life.”

Michel Henry (1922–2002) French writer

Books on Culture and Barbarism, Seeing the Invisible: On Kandinsky (1988)
Source: Michel Henry, Seeing the invisible: On Kandinsky, Continuum, 2009, p. 107

Life, World, Art, Imagination

“Mountain climbing is an analogue of the research process in theoretical physics. In working on a problem in physics one is never assured of a solution, because there are many false leads and pitfalls. Likewise in climbing there is no certainty of attaining the summit; the route is often unknown, or sometimes one attains a false summit. But the important point is that if you reach the top, the view is enormous. There is no comparison between what you see from just below the summit and what you can see from the top. Similarly with finally solving an important problem in physics the view you get is enormous.”

Heinz R. Pagels (1939–1988) American physicist

Source: The Cosmic Code (1982), p. 272

Mountain, Problem, Falseness

“It is illicit for the heart to smell the scent of certainty while contentment with other-than-God dwells therein.”

Sahl al-Tustari (818–896) arabian Sufi, Islamic theologian

Source: The Sayings and Teachings of the Great Mystics of Islam (2004), p. 54

God, Heart

“The worst thing about death is not uncertainty. The worst thing about death is the certainty that humans will be separated from the light of the true truth as a result of their own arrogance and ignorance.”

Titon Rahmawan

Death, Truth, Light