I would note that orthodox statistics and the Copenhagen interpretation of quantum theory are just two different manifestations of a single intellectual disease, closely related to logical positivism, which has debilitated every area of theoretical science in this century. The symptoms of this disease are the loss of conceptual discrimination; i.e., the inability to distinguish between probability and frequency, between reality and our knowledge of reality, between meaning and method of testing, etc.

-- E.T. Jaynes, summarizing all of Eliezer's posts

All my life I've had one dream, to achieve my many goals.

-- Homer Simpson

“Do as I say, not as I do:” this is considered the very motto of hypocrisy. But does anyone believe that having a good character is as easy as wanting it? If virtue is as difficult as other excellences, there must be few or none who are perfectly virtuous. If the rest of us are not even to talk about virtue or express admiration for it, how shall anyone improve? A hypocrite is one who claims virtue beyond what he possesses, not one who recommends virtue beyond what he claims. If a man’s principles are no better than his character, it is less likely to be a sign of an exemplary character than a sign of debased principles.

-- Mark Thompson

Before anything, ask yourself, "What do I want to have happen?"

James Lee Stanley

If the only tool you have is a hammer, you tend to see every problem as a nail.

Abraham Maslow

For many years I had a slight variant of this in my sig: "When the only tool you have is a hammer, all your problems start to look like nails"

I used to be a terrible hypochondriac when I was young and a great reader of medical dictionaries. One day I realised that I was not actually frightened of terminal illness but of not getting done the things I wanted to get done.

• A.C. Grayling, from a recent Guardian mini-interview

(My interpretation: remember that our various seemingly nonsensical personality tics can mask other, more addressable concerns.)

I thought about med school again, the anatomy class I had told Jason about. Candice Boone, my one-time almost-fiancée, had shared that class with me. She had been stoic during the dissection but not afterward. A human body, she said, ought to contain love, hate, courage, cowardice, soul, spirit ... not this slimy assortment of blue and red imponderables. Yes. And we ought not to be dragged unwilling into a harsh and deadly future.

But the world is what it is and won't be bargained with. I said as much to Candice.

She told me I was "cold". But it was still the closest thing to wisdom I had ever been able to muster.

• Robert Charles Wilson, Spin

One request I must make of my reader, which is, that in judging these poems he would decide by his own feelings genuinely, and not by reflection upon what will probably be the judgment of others. How common is it to hear a person say, I myself do not object to this style of composition, or this or that expression, but to such and such classes of people it will appear mean or ludicrous! This mode of criticism, so destructive of all sound unadulterated judgment, is almost universal: let the reader then abide, independently, by his own feelings, and, if he finds himself affected, let him not suffer such conjectures to interfere with his pleasure. - Wordsworth's preface to Lyrical Ballads, qtd. in Forms of Verse by Sara DeFord and Clarinda H. Lott, pg. 36

Sagredo: [I]n my opinion nothing occurs contrary to nature except the impossible, and that never occurs. - "Two New Sciences" (1914 translation), Galileo Galilei

Many of the arguments on LW remind me of this quote:

"for the obscurity of the distinctions and of the principles that they use is the reason why they talk about everything as confidently as if they knew about it, and defend everything they say about it against the most subtle and knowledgeable, without leaving any room to convince them of their mistake. In doing this they seem to me to resemble a blind person who, in order to fight without any disadvantage against a sighted person, would bring them into the depths of a very dark celar."

-Rene Descartes from the Discourse on Method

We are what we pretend to be, so we must be careful what we pretend to be. -Vonnegut

Seems apropos to recent posts on honesty, as well.

"But if today is really in honor of a hundred children murdered in war," he said, "is today a day for a thrilling show?"

"The answer is yes, on one condition: that we, the celebrants, are working consciously and tirelessly to reduce the stupidity and viciousness of ourselves and of all mankind."

--Cat's Cradle, Kurt Vonnegut

All rested, eventually. Their technology climbed to some complacent asymptote, and stopped—and so they do not stand before you now. Now even my creators grow fat and slow. Their environment mastered, their enemies broken, they can afford more pacifist luxuries. Their machines softened the universe for them, their own contentment robs them of incentive. They forget that hostility and technology climb the cultural ladder together, they forget that it's not enough to be smart. You also have to be mean.

-- Peter Watts, 'Ambassador'

Beyond the age of information is the age of choices.

-- Charles Eames

...and then I came over here, and then I told you the story, and then it was now, and then I don't know what happened.

-Fry of the show Futurama perceives the future well

According to an old story, a lord of ancient China once asked his physician, a member of a family of healers, which of them was the most skilled in the art.

The physician, whose reputation was such that his name became synonymous with medical science in China, replied, "My eldest brother sees the spirit of sickness and removes it before it takes shape and so his name does not get out of the house."

"My elder brother cures sickness when it is still extremely minute, so his name does not get out of the neighborhood."

"As for me, I puncture veins, prescribe potions, and massage skin, so from time to time my name gets out and is heard among the lords."

-- Thomas Cleary, Introduction to The Art of War

I have written letters that are failures, but I have written few, I think, that are lies. Trying to reach a person means asking the same question over and again: Is this the truth, or not? I begin this letter to you, then, in the western tradition. If I understand it, the western tradition is: Put your cards on the table.

-- Amy Hempel, 'Tumble Home'

"I'm writing a book on magic," I explain, and I'm asked, "Real magic?" By real magic people mean miracles, thaumaturgical acts, and supernatural powers. "No," I answer. "Conjuring tricks, not real magic."

Real magic, in other words, refers to the magic that is not real, while the magic that is real, that can actually be done, is not real magic.

-from Net of Magic, by Lee Siegel

From <a href="http://ta-nehisicoates.theatlantic.com/archives/2009/07/the_practical_limits_of_knowledge.php#more">Ta Nehisi Coates</a>:

<blocikquote>But I distrusted the whole game. Intuitively, I wonder about the honesty and proficiency of writers who opine on everything from Iran to education to drug policy to health care to cap and trade to race. Perhaps these people simply have more brains than me, but the catch-all nature of punditry, the need to speak on every policy topic as though one were an expert, is exactly what I hope to avoid.</blockquote>

There are few ways in which a man can be more innocently employed than in getting money.

-- Samuel Johnson

Take the thoughts of such an one, used for many years to one tract, out of that narrow compass he has been all his life confined to, you will find him no more capable of reasoning than almost a perfect natural. Some one or two rules on which their conclusions immediately depend you will find in most men have governed all their thoughts; these, true or false, have been the maxims they have been guided by. Take these from them, and they are perfectly at a loss, their compass and polestar then are gone and their understanding is perfectly at a nonplus; and therefore they either immediately return to their old maxims again as the foundations of all truth to them, notwithstanding all that can be said to show their weakness, or, if they give them up to their reasons, they with them give up all truth and further enquiry and think there is no such thing as certainty.

-- John Locke, Of the Conduct of Understanding

"On the contrary, it's because someone knows something about it that we can't talk about physics. It's the things that nobody knows about that we can discuss. We can talk about the weather; we can talk about social problems; we can talk about psychology; we can talk about international finance... so it's the subject that nobody knows anything about that we can all talk about! "

-- Richard Feynman

"I’m moved to laughter at the thought of how presumptuous it would be to reject mathematics for philosophical reasons. How would you like the job of telling the mathematicians that they must change their ways…now that philosophy has discovered that there are no classes? Can you tell them, with a straight face, to follow philosophical argument wherever it leads? If they challenge your credentials, will you boast of philosophy’s other great discoveries: that motion is impossible, that a Being than which no greater can be conceived cannot be conceived not to exist, that it is unthinkable that anything exists outside the mind, that time is unreal, that no theory has ever been made at all probable by evidence (but on the other hand that an empirically ideal theory cannot possibly be false), that it is a wide-open scientific question whether anyone has ever believed anything, and so on, and on, ad nauseam? Not me!"

-- David Lewis, 'Parts of Classes'

"The reader in search of knock-down arguments in favor of my theories will go away disappointed. Whether or not it would be nice to knock disagreeing philosophers down by sheer force of argument, it cannot be done. Philosophical theories are never refuted conclusively. (or hardly ever. Gödel and Gettier may have done it.) The theory survives its refutation - at a price. Perhaps that is something we can settle more or less conclusively. But when all is said and done, and all the tricky arguments and distinctions and counterexamples have been discovered, presumably we will still face the question which prices are worth paying, which theories are on balance credible, which are the unacceptably counterintuitive consequences and which are the acceptably counterintuitive ones. On this question we may still differ. And if all is indeed said and done, there will be no hope of discovering still further arguments to settle our differences."

-- David Lewis (thousand-year-old vampire)

There is a mathematical style in which proofs are presented as strings of unmotivated tricks that miraculously do the job, but we found greater intellectual satisfaction in showing how each next step in the argument, if not actually forced, is at least something sweetly reasonable to try. Another reason for avoiding [pulling] rabbits [out of the magicians's hat] as much as possible was that we did not want to teach proofs, we wanted to teach proof design. Eventually, expelling rabbits became another joy of my professional life.

-- Edsger Dijkstra

Edit: Added context to "rabbits" in brackets.

Testing shows the presence, not the absence of bugs.

-- Edsger Dijkstra

...you have to make a conscious effort to keep your ideas about what you want from being contaminated by what seems possible.This is isomorphic to the principle that you should prevent your beliefs about how things are from being contaminated by how you wish they were. Most people let them mix pretty promiscuously. The continuing popularity of religion is the most visible index of that.

-- pg

Do stuff, read stuff, think and make up your mind. Have you actually selected an entity which you think of as "objective"? This is like having a slave port in your brain.

-- yosefk

"Philosophy triumphs easily over past and future evils; but present evils triumph over it."

-- Francois de La Rochefoucauld

Numerical arithmetic should look to children like a simpler and faster way of doing things that they know how to do already, not a set of mysterious recipes for getting right answers to meaningless questions.

John Holt, How Children Fail, p. 101

See also Paul Lockhart.

On some pitch black mornings, hearing what I knew was a cold wind howling outside, I might think, "Well, it is certainly comfortable in this bed, and maybe it wouldn't hurt if I just skipped practicing to-day." But my response to this was not to draw on something called will power, to insult or threaten myself, but to take a longer look at my life, to extend my vision, to think about the whole of my experience, to reconnect present and future, and quite specifically, to ask myself, "Do you like playing the cello or not? Would you like to play it better or not?" When I put the matter this way I could see that I enjoyed playing the cello more than I enjoyed staying in bed. So I got up. If, as sometimes happened or happens, I do stay in bed, not sleeping, not really thinking, but just not getting up, it is not because will power is weak but because I have temporarily become disconnected, so to speak, from the wholeness of my life. I am living in that Now that some people pursue so frantically, that gets harder to find the harder we look for it.

John Holt, Freedom and Beyond, p. 119

See also this comment by Z_M_Davis.

The sciences do not try to explain, they hardly even try to interpret, they mainly make models. By a model is meant a mathematical construct which, with the addition of certain verbal interpretations, describes observed phenomena. The justification of such a mathematical construct is solely and precisely that it is expected to work.

John Von Neumann

When I was young, I thought the act of getting older meant, year by year, getting more sophisticated, more hard, cool, and unpitying. Less innocent.

Maybe that was a childish idea of what getting older was about. Maybe adults, mature adults, get more innocent with time, not less. Because the word "innocent" does not mean "naive," it means "not guilty."

Children do small evils to each other, schoolyard fights and insults, not because their hearts are pure, but because their powers are small. Grown-ups have more power. Some of them do great evils with that power. But what about the ones who don't? Aren't they more innocent than children, not less?

-- John C. Wright, Fugitives of Chaos

There is no real me! Don't try to find the real me! Don't try to find someone inside of me who isn't me!

-- Princess Waltz

Commentary: What's odd is not how many people think they contain other people. What's odd is how many of those people think the other person is the real one.

"Experiment and theory often show remarkable agreement when performed in the same laboratory."

-- Daniel Bershader

Those who can make you believe absurdities can make you commit atrocities.

-- Voltaire

Many highly intelligent people are poor thinkers. Many people of average intelligence are skilled thinkers. The power of a car is separate from the way the car is driven.

-- Edward de Bono

The truth may be out there, but the lies are inside your head.

-- Terry Pratchett, 'Hogfather'

Philosophers who reject God, Cartesian dualism, souls, noumenal selves, and even objective morality cannot bring themselves to do the same for the concepts of free will and moral responsibility. The question is: Why?

Tamnor Sommers — Distributed Cognition and the Will: Individual Volition and Social Context, “The Illusion of Freedom Evolves”, p. 62, MIT Press, 2007

The Mathemagician nodded knowingly and stroked his chin several times. "You'll find," he remarked gently, "that the only thing you can do easily is be wrong, and that's hardly worth the effort."

-- Norton Juster, The Phantom Tollbooth

Pretend what we may, the whole man within us is at work when we form our philosophical opinions.

William James

I don't know how many people I've met who hold beliefs like "in three card stud a four is more likely to come up after an eight than a six." What the fuck? Is the concept of random that hard to grasp?

-- Alphadominance

We all know many things about the world. What form or shape does our knowledge take? We may be able to say some of what we know, though in many people there is a deep and dangerous confusion between what they say and think they believe and what they really believe. But all of us know much more than we can say, and many times we cannot really put it into words at all.

For example, if we have eaten them, we know what strawberries taste like. We have in us somewhere knowledge---a memory, many memories---of the taste of strawberries. Not just one berry either, but many, more or less ripe, or sweet, or tasty. But how can we really speak of the taste of a strawberry? When we bite into a berry, we are ready to taste a certain kind of taste; if we taste something very different, we are surprised. It is this---what we expect or what surprises us---that tells us best what we really know.

We know many other things that we cannot say. We know what a friend looks like, so well that we may say, seeing him after some time, that he looks older or no older; heavier or thinner; worried or at peace, or happy. But our answers are usually so general that we could not give a description from which someone who had never seen our friend could recognize him.

---John Holt, What Do I Do Monday?

"I am about to discuss the disease called 'sacred'. It is not, in my opinion, any more divine or more sacred than other diseases, but has a natural cause, and its supposed divine orgin is due to men's inexperience, and to their wonder at its peculiar character"

--Hippocractic treatise on epilepsy

[N]ot just our actions and reactions but our very perceptions, what we think we see, feel, smell, and so on, are deeply affected by our mental model, our assumptions and beliefs about the way things really are. In a great variety of experiments with perception, many people, many times over, have shown this to be true. Therefore it is not just fancy and tricky talk to say that each of us lives, not so much in an objective out-there world that is the same for all of us, but in his mental model of that world. It is this model of the world that he experiences. We are not, then starting an impossible contradiction, or using language carelessly, when we say that I live in my mental model of the world, and my mental model lives in me.

---John Holt, What Do I Do Monday?

Compare "Where Recursive Justification Hits Bottom"

"An economic transaction is a solved political problem."

--Abba Lerner

All truth is not, indeed, of equal importance; but if little violations are allowed, every violation will in time be thought little.

-- Samuel Johnson

Defects of empirical knowledge have less to do with the ways we go wrong in philosophy than defects of character do: such things as the simple inability to shut up; determination to be thought deep; hunger for power; fear, especially the fear of an indifferent universe.

-- David Stove, What Is Wrong With Our Thoughts

"The range of what we think and do is limited by what we fail to notice. And because we fail to notice that we fail to notice there is little we can do to change until we notice that failing to notice shapes our thoughts and deeds."

-- R.D. Laing, Knots

"To stay young requires unceasing cultivation of the ability to unlearn old falsehoods."

-- Robert A. Heinlein (to be precise, his character Lazarus Long, but I don't think there's much difference)

At the other end of the spectrum are the opponents of reductionism who are appalled by what they feel to be the bleakness of modern science. To whatever extent they and their world can be reduced to a matter of particles or fields and their interactions, they feel diminished by that knowledge....I would not try to answer these critics with a pep talk about the beauties of modern science. The reductionist worldview is chilling and impersonal. It has to be accepted as it is, not because we like it, but because that is the way the world works.

--Steven Weinberg

It may help to understand human affairs to be clear that most of the great triumphs and tragedies of history are caused, not by people being fundamentally good or fundamentally bad, but by people being fundamentally people.

-- Neil Gaiman & Terry Pratchett, 'Good Omens'

Go is a game of big moves and little moves. One problem we will examine here is what may look big now can, in the final analysis, be small, and vice versa. The ability to see what is and what is not territory and potential territory is to see the truth on the board.

– Peter Shotwell, Go: More than a game

Censure yourself, never another. Do not discuss right and wrong.

-- Zengetsu

When I first saw this, I had a negative gut reaction. The second sentence especially bothered me. Over time, I've come to like it more. I'm now at the point of wanting to follow it but usually failing to do so.

Discussions here on [akrasia][] seem to focus on procrastination, but this is my own very close number two.

Leadership skills are quite different from management skills. When you "manage," by definition, you're trying to distribute resources where they will do the company the most good. When you "lead," by definition, you're trying to get those resources distributed to yourself. Obviously, leadership is a better way to go. It's easier too.

-- Scott Adams, Dogbert's Top Secret Management Handbook

In a sense, words are encyclopedias of ignorance because they freeze perceptions at one moment in history and then insist we continue to use these frozen perceptions when we should be doing better.

-- Edward de Bono

"The future already happened. We just haven't reached it yet." - Sarda the Sage

Brian Clevinger, 8-Bit Theater

In all sensation we pick and choose, interpret, seek and impose order, and devise and test hypotheses about what we witness. Sense data are taken, not merely given: we learn to perceive.… The teacher has forgotten, and the student himself will soon forget, that what he sees conveys no information until he knows beforehand the kind of thing he is expected to see.

Peter Medawar — Pluto’s Republic, “Hypothesis and Imagination”, p. 117

"Anyone who cannot cope with mathematics is not fully human. At best he is a tolerable subhuman who has learned to wear shoes, bathe, and not make messes in the house."

-- Robert Heinlein (as Lazarus Long)

ETA: If I could downvote my own postings, I'd downvote this one. I won't delete it, to leave the context for loqi's response.

Dammit, I've read Distress and I know without looking exactly the context of the Egan quote. I was practically cheering for Rourke in that chapter. But there's a big gap between encountering an idea and finding it good, and actually applying it after closing the book.

Some people are always critical of vague statements. I tend rather to be critical of precise statements; they are the only ones which can correctly be labeled 'wrong'.

-- Raymond Smullyan

"Aristotle maintained that women have fewer teeth than men; although he was twice married, it never occurred to him to verify this statement by examining his wives' mouths."

~ Bertrand Ruessell

So what do you do when your dream dies?

When your dream dies, you give it up.

-- A Deepness in the Sky, Vernor Vinge

“To practice any art, no matter how well or badly, is a way to make your soul grow. So do it” --I tried to find where I read it, but unsucessfully

EDIT: Googled, it's by Kurt Vonnegut

"As a final practical maxim, relative to these habits of the will, we may, then, offer something like this: Keep the faculty of effort alive in you by a little gratuitous exercise every day. That is, be systematically ascetic or heroic in little unnecessary points, do every day or 2 something for no other reason than that you would rather not do it, so that when the hour of dire need draws nigh, it may find you not unnerved and untrained to stand the test. Asceticism of this sort is like the insurance which a man pays on his house and goods. The tax does him no good at the time, and possibly may never bring him a return. But if the fire does come, his having paid it will be his salvation from ruin."

--William James, The Principles of Psychology 1890, Chapter IV

"The person who takes the banal and ordinary and illuminates it in a new way can terrify. We do not want our ideas changed. We feel threatened by such demands. "I already know the important things!" we say. Then Changer comes and throws our old ideas away."

Chapterhouse Dune, Frank Herbert

"For there is no error so crooked, but it hath in it some lines of truth;

Nor is any poison so deadly, that it serveth not some wholesome use."

"Of Truth in Things False", Proverbial Philosophy, Martin Farquhar Tupper

Treat infinite descent as a working hypothesis, and since all entities turn out to be composite, supervenient, realized, and governed, it emerges that these attributes cannot be barriers to full citizenship in the republic of being. The macroworld, once regained, is not easily lost, even should real evidence for fundamentality arrive.

-- Jonathan Schaffer, 'Is There a Fundamental Level?'

I was such a timid and conventional young man that it never occurred to me, not for a second, that I might stay out on the West Coast, arrange to get discharged [from the Navy] there, see something of California and the Northwest, and hear Woody Herman in the process.

John Holt, Never Too Late

Don Quixote: Dost not see? A monstrous giant of infamous repute whom I intend to encounter.

Sancho Panza: It's a windmill.

Don Quixote: A giant. Canst thou not see the four great arms whirling at his back?

Sancho Panza: A giant?

Don Quixote: Exactly.

-- Cervantes