"What do you think the big headlines were in 1666, the year Newton posited gravitation as a universal force, discovered that white light was composed of the colors of the spectrum, and invented differential calculus, or in 1905, the “annus mirabilis” when Einstein confirmed quantum theory by analyzing the photoelectric effect, introduced special relativity, and proposed the formulation that matter and energy are equivalent? The Great Fire of London and the Anglo-Dutch War; The Russian Revolution and the Russo-Japanese War. The posturing and squabbling of politicians and the exchange of gunfire over issues that would be of little interest or significance to anyone alive now. In other words, ephemeral bullshit. These insights and discoveries are the real history of our species, the slow painstaking climb from ignorance to understanding."

• Tim Kreider

Don't you feel in your heart that these contradictions do not really contradict: that there is a cosmos that contains them all? The soul goes round upon a wheel of stars and all things return; perhaps Strake and I have striven in many shapes, beast against beast and bird against bird, and perhaps we shall strive for ever. But since we seek and need each other, even that eternal hatred is an eternal love. Good and evil go round in a wheel that is one thing and not many. Do you not realize in your heart, do you not believe behind all your beliefs, that there is but one reality and we are its shadows; and that all things are but aspects of one thing: a centre where men melt into Man and Man into God?'

'No,' said Father Brown.

-- G.K. Chesterton

A decision was wise, even though it led to disastrous consequences, if the evidence at hand indicated it was the best one to make; and a decision was foolish, even though it led to the happiest possible consequences, if it was unreasonable to expect those consequences.

-- Herodotus

Like every writer, he measured the virtues of other writers by their performance, and asked that they measure him by what he conjectured or planned.

Jorge Luis Borges, "The Secret Miracle".

Truths were carved from the identical wood as were lies — words — and so sank or floated with equal ease. But since truths were carved by the World, they rarely appeased Men and their innumerable vanities.

-- Drusas Achamian, in "The White-Luck Warrior" by R. Scott Bakker

He wanted to find fault with the idea but couldn't quite do it on the spur of the moment. He filed it away for later discrediting

The Magician King by Lev Grossman

Sometimes you hear philosophers bemoaning the fact that philosophers tend not to form consensuses like certain other disciplines do (sciences in particular). But there is no great mystery to this. The sciences reward consensus-forming as long as certain procedures are followed: agreements through experimental verification, processes of peer review, etc. Philosophy has nothing like this. Philosophers are rewarded for coming up with creative reasons not to agree with other people. The whole thrust of professional philosophy is toward inventing ways to regard opposing arguments as failure, as long as those ways don't exhibit any obvious flaws. However much philosophers are interested in the truth, philosophy as a profession is not structured so as to converge on it; it is structured so as to have the maximal possible divergence that can be sustained given common conventions. We are not trained to find ways to come to agree with each other; we are trained to find ways to disagree with each other.

Brandon Watson

"-but I think it would probably kill you."

"Comforting to know. Well, more comforting than not knowing it could kill you," I remark pointedly.

Sam Hughes

A person usually has two reasons for doing something: a good reason and the real reason.

--Thomas Carlyle

This is one of those occasions when it would be wise to translate back into respectable gene language, just to reassure ourselves that we have not become too carried away with subjective metaphors.

Richard Dawkins, The Selfish Gene, ch. 8

"Don’t ask yourself if something is fair. Ask someone else--a stranger in the street, for example." -Lemony Snicket

News flash, dearies: there’s lots of areas of life that aren’t ‘science’ where people do tend to get a mite hung up on particulars of what is and is not, in fact, true. Like in bookkeeping. Like in criminal investigations. Like when they’re trying to establish where their spouse was last night.

Like, in fact, in most facets of life, hundreds of times a day, even if accounting isn’t your field and you’re not the accused at a criminal trial, and you’re not even married. Getting the facts right isn’t a concern of ‘science’, specifically. It’s a general concern of human beings. Getting reality right is, frequently, indeed, rather important if you wish to stay alive. It’s not a particularly academic question whether the car is or is not coming, when you cross the road. It’s the sort of thing one likes to get right. And we don’t generally call this ‘science’, either. We call it ‘looking’.

-- AJ Milne

"Many a man fails as an original thinker simply because his memory is too good."

--#122 Assorted Opinions and Maxims, Friedrich Nietzsche

My faith in the expertise of physicists like Richard Feynman, for instance, permits me to endorse—and, if it comes to it, bet heavily on the truth of—a proposition that I don't understand. So far, my faith is not unlike religious faith, but I am not in the slightest bit motivated to go to my death rather than recant the formulas of physics. Watch: E doesn't equal mc2, it doesn't, it doesn't!

--Dan Dennet: Breaking the Spell

"Our errors are surely not such awfully solemn things. In a world where we are so certain to incur them in spite of all our caution, a certain lightness of heart seems healthier than this excessive nervousness on their behalf."

--William James, "The Will to Believe" (section VII)

There are some that only employ words for the purpose of disguising their thoughts.

Voltaire

Although this may seem a paradox, all exact science is dominated by the idea of approximation. When a man tells you that he knows the exact truth about anything, you are safe in inferring that he is an inexact man.

Bertrand Russell

The most valuable acquisitions in a scientific or technical education are the general-purpose mental tools which remain serviceable for a lifetime. I rate natural language and mathematics as the most important of these tools, and computer science as a third.

George E. Forsythe

Everything is revealed to he who turns over enough stones. (Including the snakes that he did not want to find.)

Anon

"As soon as we look at the nature of inference at this many-moves-ahead level of perception, our attitude toward probability theory and the proper way to use it in science becomes almost diametrically opposite to that expounded in most current textbooks. We need have no fear of making shaky calculations on inadequate knowledge; for if our predictions are indeed wrong, then we shall have an opportunity to improve that knowledge, an opportunity that would have been lost had we been too timid to make the calculations.

Instead of fearing wrong predictions, we look eagerly for them; it is only when predictions based on our present knowledge fail that probability theory leads us to fundamental new knowledge."

E.T. Jaynes's "Bayesian Methods: General Background"

Now, a symbol is not, properly speaking, either true or false; it is, rather, something more or less well selected to stand for the reality it represents, and pictures that reality in a more or less precise, or a more or less detailed manner.

Pierre Duhem The aim and structure of physical theory

Thus I make no apologies for focusing on income. Over the long run in- come is more powerful than any ideology or religion in shaping lives. No God has commanded worshippers to their pious duties more forcefully than income as it subtly directs the fabric of our lives.

-- Gregory Clark, A farewell to Alms

[ In his interesting book on economic history, Gregory Clark follows Adam Smith ]

The god we seek must rule the world according to our own will.

Dragon Quest Monsters: Joker 2

There is one rule that's very simple, but not easy: observe reality and adjust.

Ran Prieur

I honestly don't know. Let's see what happens.

-- Hans. The Troll Hunter

It would be an error to suppose that the great discoverer seizes at once upon the truth, or has any unerring method of divining it. In all probability the errors of the great mind exceed in number those of the less vigorous one. Fertility of imagination and abundance of guesses at truth are among the first requisites of discovery; but the erroneous guesses must be many times as numerous as those that prove well founded. The weakest analogies, the most whimsical notions, the most apparently absurd theories, may pass through the teeming brain, and no record remain of more than the hundredth part….

W. Stanley Jevons

I think, therefore I am perhaps mistaken.

Sharon Fenick

"A scientific theory should be as simple as possible, but no simpler."

Einstein

Being right too soon is socially unacceptable.

Robert A. Heinlein

What good fortune for those in power that people do not think.

Adolph Hitler

Everything that needs to be said has already been said. But since no one was listening, everything must be said again.

André Gide

Unlike statements of fact, which require no further work on our part, lies must be continually protected from collisions with reality. When you tell the truth, you have nothing to keep track of. The world itself becomes your memory, and if questions arise, you can always point others back to it. You can even reconsider certain facts and honestly change your views. And you can openly discuss your confusion, conflicts, and doubts with all comers. In this way, a commitment to the truth is naturally purifying of error.

Sam Harris, "Lying"

T-Rex: If I lived in the past I'd have different beliefs, because I'd have nobody modern around to teach me anything else!

FACT.

And I find it really unlikely that I would come up with all our modern good stuff on my own, running around saying "You guys! Democracy is pretty okay. Also, women are equal to men, and racism? Kind of a dick move." If I was raised by racist and sexist parents in the middle of a racist and sexist society, I'm pretty certain I'd be racist and sexist! I'm only as enlightened as I am today because I've stood on the shoulders of giants.

Right. So that raises the question: Is everyone from that period in Hell, or is Heaven overwhelmingly populated by racists?

-- T-Rex, Dinosaur Comics

"We know this much
Death is an evil;
we have the gods'
word for it; they too
would die if death
were a good thing"

--Sappho #7; trans. Barnard (seen on http://www.nada.kth.se/%7Easa/Quotes/immortality )

‎"Real magic is the kind of magic that is not real, while magic that is real (magic that can actually be done), is not real magic."

-Lee Siegle

If the Coyote orders all those gizmos then why doesn't he just order food?

• Unknown

You are not a special little snowflake, but you should act like you are. If people are going to form impressions of you it’s better they make false positive ones than true negative ones.

-- Roissy in DC

Nature admits no lie.

--Thomas Carlyle

There is an ironic but highly valuable quality to AI in all its forms. The effort to simulate or surpass human intelligence is uncovering subtleties and paradoxes about the human mind we might never have imagined. By way of heroic failures, AI is teaching us how truly strange [human] intelligence is.

Theodore Roszack

Humanity has the stars in its future, and that future is too important to be lost under the burden of juvenile folly and ignorant superstition.

Isaac Asimov

"I can do parkour for the rest of my life without even moving. Just efficient thinking."

• Ryan Doyle, parkour athlete

"I find the Law of Fives to be more and more manifest the harder I look."

--Principia Discordia (surprisingly, not quoted yet)

Most people who quote Einstein’s declaration that “God does not play dice” seem not to realize that a dice-playing God would be an improvement over the actual situation

-Scott Aaronson, from here

The least evil is still evil. The least monstrous is still monstrous

When, as will happen, you are yourself forced to choose between two bad things, then choose the lesser of the evils and choose it boldly. That will be the right choice and, if circumstances are truly as circumscribed as you believe them to be, that will be the right thing to do in that situation.

But it still won't be a good thing. It isn't a good thing and cannot be made good.

Fred Clarke, August 9

Whether their motives were righteous or venal, highminded or base, noble or ig-, in retrospect the obvious verdict is that they were all morons--yes, even the distinguished fellows and visiting scholars at think tanks and deans of international studies schools. They were morons because the whole moral, political and practical purpose of their scheme depended on its going exactly according to plan. Which nothing ever does. The Latin phrase for this logical fallacy would be Duh. Some of them were halfway intelligent; some of them may even have been well-intentioned; but they lacked imagination, and this is a fatal flaw. What we learn from history is that it never turns out like it's supposed to. And the one thing we know for sure about the future is that it won't be like we think.

Tim Kreider, Artist's Note for The Pain

"It is startling to realize how much unbelief is necessary to make belief possible. What we know as blind faith is sustained by innumerable unbeliefs."

• Eric Hoffer

It does not do to dwell on dreams... and forget to live.

Professor Albus Percival Wulfric Brian Dumbledore

But what a fool believes ... he sees
No wise man has the power
To reason away
What seems ... to be

Michael McDonald and Kenny Loggins, via the Doobie Brothers

The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.

William Lawrence Bragg

From the film The Maggie. The quote is excerpted from here.

Background: Earlier part of the 20th century, the west coast of Scotland. Marshall, an American, is in a small chartered aircraft chasing a Clyde puffer captained by Mactaggart, with whom he has business. He and the pilot have just caught sight of her in the sea below. Night is approaching.

Marshall: Where do you reckon they're making for?
Pilot: It looks like they're putting into Inverkerran for the night.
Marshall: Tell me, if they thought I thought they were going to Inverkerran, where do you reckon they would make for then?
Pilot: Strathcathaig, maybe.
Marshall: This sounds silly, but if they thought I'd think they were going to Strathcathaig because it looked as if they were going to Inverkerran -- where would they go then?
Pilot: My guess would be Pennymaddy.
Marshall: If there's such a thing as a triple bluff, I bet Mactaggart invented it. Okay, Pennymaddy.

--Cut to aboard the puffer--

Mactaggart: Aye, he'll have guessed we're making for Inverkerran.
Hamish: Will he not go there himself, then?
Mactaggart: Oh, no. He'll know we know he's seen us, so he'll be expecting us to head for Strathcathaig instead.
Hamish: Will I set her for Pennymaddy, then?
Mactaggart: No, If it should occur to him that it's occurred to us that he's expecting us to go to Strathcathaig, he would think we'll be making for Pennymaddy.
Hamish: Well, then, shall I set her for Penwhannoy?
Mactaggart: No. We'll make for Inverkerran just as we planned. It's the last thing he's likely to think of.

With a few brackets it is easy enough to see that 5 + 4 is 9. What is not easy to see is that 5 + 4 is not 6.

Carl Linderholm, Mathematics Made Difficult.

Three proposed derogatory labels from Dilbert creator Scott Adams:

Labelass: A special kind of idiot who uses labels as a substitute for comprehension.

Binarian: A special kind of idiot who believes that all people who hold a different view from oneself have the same views as each other.

Masturdebator: One who takes pleasure in furiously debating viewpoints that only exist in the imagination.

Reason is the faculty that identifies and integrates the material provided by man’s senses. It is a faculty that man has to exercise by choice. Thinking is not an automatic function. In any hour and issue of his life, man is free to think or to evade that effort. Thinking requires a state of full, focused awareness. The act of focusing one’s consciousness is volitional. Man can focus his mind to a full, active, purposefully directed awareness of reality—or he can unfocus it and let himself drift in a semiconscious daze, merely reacting to any chance stimulus of the immediate moment, at the mercy of his undirected sensory-perceptual mechanism and of any random, associational connections it might happen to make.

Ayn Rand

And the simple reason why it is so easy to fool psychiatrists with words like "atypical" and "tricyclic" is that most psychiatrists are stupendously ignorant of even kindergarten-level pharmacology and have barely any idea about how to interpret a study-- I don't mean p values, I mean looking at the y-axis; I mean the introduction. Much, much easier to base all of their arguments on empty terms that are nothing other than branding choices. Never mind the senseless term "atypical". Gun to head, is Seroquel an "antipsychotic" or an "antidepressant"? Confused? Sometimes a cigar is just a cigar, I guess.

-- The Last Psychiatrist, "The Rise and Fall of Atypical Antipsychotics"

What you see, yet can not see over, is as good as infinite.

--Thomas Carlyle

All the limitative Theorems of metamathematics and the theory of computation suggest that once the ability to represent your own structure has reached a certain critical point, that is the kiss of death: it guarantees that you can never represent yourself totally. Godel's Incompleteness Theorem, Church's Undecidability Theorem, Turing's Halting Problem, Tarski's Truth Theorem-- all have the flavour of some ancient fairy tale which warns you that "To seek self- knowledge is to embark on a journey which . . . will always be incomplete, cannot be charted on a map, will never halt, cannot be described."

--Douglas Hofstadter

The people who are crazy enough to think they can change the world are the ones who do.

Apple

I can't stop myself. My question was interesting, so I asked it; my arguments were valid, so I made them.

Scott Aaronson

Jettison politics from your personal life. Jawing about political ideology is worse than useless — it’s a time suck and a trick played by your status-seeking reptilian hindbrain on your frontal lobes that does nothing to bring you more happiness OR status. Your vote really won’t matter.

--Roissy in DC

From the first episode of Dexter, season 6:

Batista: "...it's all about faith..."
Dexter: "Mmm..."
Batista: "It's something you feel, not something you can explain. It's very hard to put into words."

Dexter smiles politely, while thinking to himself: Because it makes no sense.

"The role of art is to serve the rational man's need for a moment, an hour or some period of time in which he can experience the sense of his completed task, the sense of living in a universe where his values have been successfully achieved. It is like a moment of rest, a moment to gain fuel to move farther. Art gives him that fuel; the pleasure of contemplating the objectified reality of one’s own sense of life is the pleasure of feeling what it would be like to live in one’s ideal world."

-- Ayn Rand

A wise man proportions his belief to the evidence.

David Hume

That's all I've got to go on if I don't understand something -- gut reaction. And it's almost always dangerously wrong.

James Burke

If something doesn't make sense, one of your assumptions has to be wrong, because if something doesn't make sense, it can't be real.

House, episode 2x24, "No Reason"

The engineer does not believe in black magic, voodoo, or rain dances. The engineer believes in scientific truth, that is, truth that can be verified by experiment.

Samuel Florman