Set Theory Quotes & Sayings

Keynes was a great economist. In every discipline, progress comes from people who make hypotheses, most of which turn out to be wrong, but all of which ultimately point to the right answer. Now Keynes, in The General Theory of Employment, Interest and Money,set forth a hypothesis which was a beautiful one, and it really altered the shape of economics. But it turned out that it was a wrong hypothesis. That doesn't mean that he wasn't a great man! — Milton Friedman

For reasons that are both obvious and highly functional, science textbooks (and too many of the older histories of science) refer only to that part of the work of past scientists that can easily be viewed as contributions to the statement and solution of the texts' paradigm problems. Partly by selection and partly by distortion, the scientists of early ages are implicitly represented as having worked upon the same set of fixed problems and in accordance with the same set of fixed canons that the most recent revolution in scientific theory and method has made seem scientific. — Thomas S. Kuhn

There is an old maxim that says that two empires that are too large will collapse. The analog in set theory is that two different theories that are too powerful must necessarily contradict each other. — Saharon Shelah

Then you would have acted to change history, but you would have replaced one history with another. You would not be able to know what past version of history you would have altered, because that history would never have happened. Nor would you be able to know what you had done in the past, or that you had done anything at all in the past, or that you had even been to the past. You would not be able to compare histories in your mind; if you entered the causality violation device knowing this, then you would realize that you would be trading one set of memories for another, and that there would never be any evidence, in your mind or in the world, that you had done this. — Dexter Palmer

By setting such strong, harsh dichotomies God taught Israel that any assimilation to pagan idolatry is intolerable. It was His way of preserving Israel's spiritual health and posterity. God knew that if these Canaanite children were allowed to live, they would spell the undoing of Israel. The killing of the Canaanite children not only served to prevent assimilation to Canaanite identity but also served as a shattering, tangible illustration of Israel's being set exclusively apart for God. — William Lane Craig

The action of the child inventing a new game with his playmates; Einstein formulating a theory of relativity; the housewife devising a new sauce for the meat, a young author writing his first novel; all of these are in terms of definition, Creative, and there is no attempt to set them in some order of more or less Creative. — Carl Rogers

To sum up: 1. The cosmos is a gigantic fly-wheel making 10,000 revolutions a minute. 2. Man is a sick fly taking a dizzy ride on it. 3. Religion is the theory that the wheel was designed and set spinning to give him the ride. — H.L. Mencken

That is, for a mathematical Platonist, what the C.H. proofs really show is that set theory needs to find a better set of core axioms than classical ZFS, or at least it will need to add some further postulates that are-like the Axiom of Choice-both "self-evident" and Consistent with classical axioms. If you're interested, Godel's own personal view was that the Continuum Hypothesis is false, that there are actually a whole (Infinity Symbol) of Zeno-type (Infinity Symbol)s nested between (Aleph0) and c, and that sooner or later a principle would be found that proved this. As of now no such principle's ever been found. Godel and Cantor both died in confinement, bequeathing a world with no finite circumference. One that spins, now, in a new kind of all-formal Void. Mathematics continues to get out of bed. — David Foster Wallace

During a news conference aboard a plane on his way home from Seoul on Monday, Francis was asked: "Do you approve [of] the American bombing?" The question was set up with a comment that the United States is "bombing the terrorists in Iraq, to prevent a genocide, to protect minorities, including Catholics." Francis avoided addressing details of the Iraq conflict, instead going into a more general discussion of Catholic theory and teaching on war. "In these cases where there is an unjust aggression, I can only say this: It is licit to stop the unjust aggressor. I underline the verb: stop. I do not say bomb, make war, I say stop by some means. With what means can they be stopped? These have to be evaluated. To stop the unjust aggressor is licit," he said, according to a transcript by America magazine. — Anonymous

Nature knows nothing of imperfection; imperfection is a human perception of nature. Inasmuch as we are part of nature we are also perfect; it is our humanity that is imperfect. And, ironically, because of our capacity for imperfection and error we are free beings - a freedom that no stone or animal can enjoy. Without the possibility of error and real indeterminacy implied by the quantum theory, human liberty is meaningless. The God that plays dice has set us free. — Heinz R. Pagels

We were anxious to begin our life as people who had no people. And it was easy to find an apartment because we had no standards; we were just amazed that it was *our* door, *our* rotting carpet, *our* cockroach infestation ... We were excited about getting jobs; we hardly went anywhere without filling out an application. But once we were hired - as furniture sanders - we could hardly believe this was really what people did all day. Everything we had thought of as The World was actually the result of someone's job. Each line on the sidewalk, each saltine. Everyone had rotting carpet and a door to pay for. Aghast, we quit. There had to be a more dignified way to live. We needed time to consider ourselves, to come up with a theory about who we were and to set it to music. — Miranda July

The mentally disturbed do not employ the Principle of Scientific Parsimony: the most simple theory to explain a given set of facts. They shoot for the baroque. — Philip K. Dick

I see the beauty of God's archetypal infinity reflected in the towers of infinities in set theory — Vern Poythress

To make a long story short, Cantorian set theory helps unify and clarify math in the sense that all mathematical entities can now be understood as fundamentally the same kind of thing-a set. — David Foster Wallace

There's a statistical theory that if you gave a million monkeys typewriters and set them to work, they'd eventually come up with the complete works of Shakespeare. Thanks to the Internet, we now know this isn't true. — Ian Hart

A small but typical example of how 'philosophy' sends out new shoots is to be found in the case of Georg Cantor, a nineteenth-century German mathematician. His research on the subject of infinity was at first written off by his scientific colleagues as mere 'philosophy' because it seemed so bizarre, abstract and pointless. Now it is taught in schools under the name of set-theory. — Anthony Gottlieb

One possible solution to the grandfather paradox is the theory of multiverse originally set forth by Hugh Everett. According to multiverse theory, every version of our past and future histories exists, just in an alternate universe.

For every event at the quantum level, the current universe splits into multiple universes. This means that for every choice you make, an infinite number of universes exist in which you made a different choice.

The theory neatly solves the grandfather paradox by posting separate universes in which each possible outcome exists, thereby avoiding a paradox.

In this way we get to live multiple lives.

There is, for example, a universe where Samuel Kingsley does not derail his daughter's life. A universe where he does derail it but Natasha is able to fix it. A universe where he does derail it and she is not able to fix it. Natasha is not quite sure which universe she's living in now. — Nicola Yoon

We really set out in all our books to say something. Every one is an effort to bring the reader over and show them our theory as to why what we're talking about needs to be talked about. — Emma McLaughlin

Existing political philosophies all developed before evolutionary game theory, so they do not take equilibrium selection into account. Socialism pretends that individuals are not selfish sexual competitors, so it ignores equilibria altogether. Conservatism pretends that there is only one possible equilibrium - a nostalgic version of the status quo - that society could play. Libertarianism ignores the possibility of equilibrium selection at the level of rational social discourse, and assumes that decentralized market dynamics will magically lead to equilibria that yield the highest aggregate social benefits. Far from being a scientific front for a particular set of political views, modern evolutionary psychology makes most standard views look simplistic and unimaginitive. — Geoffrey Miller

Poetry is and should not be explained
It's not a theory not a formula or a set pattern
It's a labyrinth of reflection with no source of image — Yarro Rai

The dancers finished thier set, and one immediately strolled over to our table and straddled Ranger.
Want a private party?" she asked.
Not tonight," Ranger said. He handed her a twenty, and she left.
What about the cat-feeding theory?" I asked him.
Out the window. — Janet Evanovich

A few individuals, by extraordinary genius, or by the accidental acquisition of a good set of intellectual habits, may work without principles in the same way, or nearly the same way, in which they would have worked if they had been in possession of principles. But the bulk of mankind require either to understand the theory of what they are doing, or to have rules laid down for them by those who have understood the theory. — John Stuart Mill

It's specifically this Z = 2^(Aleph0) that he couldn't prove. Ever. Despite years of unimaginable doodling. Whether it's what unhinged him or not is an unanswerable question, but it is true that his inability to prove the C.H. caused Cantor pain for the rest of his life; he considered it his great failure. This too, in hindsight, is sad, because professional mathematicians now know exactly why G. Cantor could neither prove nor disprove the C.H. The reasons are deep and important and go corrosively to the root of axiomatic set theory's formal Consistency, in rather the same way that K. Godel's Incompleteness proofs deracinate all math as a formal system. Once again, the issues here can be only sketched or synopsized (although this time Godel is directly involved, so the whole thing is probably fleshed out in the Great Discoveries Series' Godel booklet). — David Foster Wallace

In my relativity theory I set up a clock at every point in space, but in reality I find it difficult to provide even one clock in my room. — Albert Einstein

Even if there is only one possible unified theory, it is just a set of rules and equations. What is it that breathes fire into the equations and makes a universe for them to describe? The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing? — Stephen Hawking

There is, however, something odd about this pattern. Other than joining a political party, it is hard to think of any other sort of community that people join by agreeing to a set of principles. Imagine joining a knitting group. Does anyone go to a knitting group and ask if the knitters believe in knitting or what they hold to be true about knitting? Do people ask for a knitting doctrinal statement? Indeed, if you start knitting by reading a book about knitting or a history of knitting or a theory of knitting, you will very likely never knit. — Diana Butler Bass

The emphasis on mathematical methods seems to be shifted more towards combinatorics and set theory - and away from the algorithm of differential equations which dominates mathematical physics. — John Von Neumann

But if all maximizing models are really arguing is that "people will always seek to maximize something," then they obviously can't predict anything, which means employing them can hardly be said to make anthropology more scientific. All they really add to analysis is a set of assumptions about human nature. The assumption, most of all, that no one ever does anything primarily out of concern for others; that whatever one does, one is only trying to get something out of it for oneself. In common English, there is a word for this attitude. It's called "cynicism." Most of us try to avoid people who take it too much to heart. In economics, apparently, they call it "science. — David Graeber

Minimalism now is a reaction to what came before. It's absolutely of its time. Music moved into the set theory thing, and moved out of it. — Harrison Birtwistle

In its quest to discover how the patterns of reality are organised, the story of modern science hints at a picture of a set of Chinese puzzle boxes, each one more intricately structured and wondrous than the last. Every time the final box appears to have been reached, a key has been found which has opened up another, revealing a new universe even more breathtakingly improbable in its conception. We are now forced to suspect that, for human reason, there is no last box, that in some deeply mysterious, virtually unfathomable, self-reflective way, every time we open a still smaller box, we are actually being brought closer to the box with which we started, the box which contains our own conscious experience of the world. This is why no theory of knowledge, no epistemology, can ever escape being consumed by its own self-generated paradoxes. And this is why we must consider the universe to be irredeemably mystical. — Bob Hamilton

The case against intellect is founded on a set of fictional and wholly abstract antagonisms. Intellect is pitted against feeling, on the ground that it is somehow inconsistent with warm emotion. It is pitted against character, because it is widely believed that intellect stands for mere cleverness, which transmutes easily into the sly and diabolical. It is pitted against practicality, since theory is held to be opposed to practice. It is pitted against democracy, since intellect is felt to be a form of distinction that defies egalitarianism ... . Once the validity of these antagonisms is accepted, then the case for intellect ... is lost. — Charles P. Pierce

In so far as such a theory is empirically correct it will also tell us what empirical facts it should be possible to observe in a given set of circumstances. — Talcott Parsons

I am now about to set seriously to work upon preparing for the press an account of my theory of Logic and Probabilities which in its present state I look upon as the most valuable if not the only valuable contribution that I have made or am likely to make to Science and the thing by which I would desire if at all to be remembered hereafter. — George Boole

The special knowledge you are about to learn will reveal a "letter theory" that was set into motion from the very first verse in your Bible. It is as though the divine author is telling the reader to expect Hebrew letters and numbers to weave messages, in the sub-text, through the rest of the Bible - starting with verse one. — Michael Ben Zehabe

For these two years I have been gravitating towards your doctrines, and since the publication of your primula paper with accelerated velocity. By about this time next year I expect to have shot past you, and to find you pitching into me for being more Darwinian than yourself. However, you have set me going, and must just take the consequences, for I warn you I will stop at no point so long as clear reasoning will take me further.

{Letter of support to Charles Darwin on his theory of evolution} — Thomas Henry Huxley

Characters may lend the action a certain colouring, but it is what happens that comes first. To overlook this while watching a tragedy would be like treating a football game simply as the acts of a set of solitary individuals, or as chance for each of them to display 'personality'. The fact that some players behave as though this is precisely what football games are about should not distract us from this point. — Terry Eagleton

I would not want you to suppose that my rejection of Allen Forte's theory of pitch-class sets implies a rejection of the notion that there can be such a thing as a pitch-class set. It is only when one defines everything in terms of pitch-class sets that the concept becomes meaningless. — George Perle

I'm very manipulative towards directors. My theory is that everyone on the set is directing the film, we're all receiving art messages from the universe on how we should do the film. — Jeff Bridges

I am using the word theory as a scientist means it: a set of ideas so well established by observations and physical models that it is essentially indistinguishable from fact. That is different from the colloquial use that means "guess." To a scientist, you can bet your life on a theory. Remember, gravity is "just a theory" too. — Philip Plait

Darwin caused controversy, not merely because his ideas contradicted Genesis, but because they fell foul of the way in which Genesis had been read by those influenced by the Enlightenment, for it was the Enlightenment that conceived of the human as almost exclusively rational and intellectual, and set the human at a distance from the animal. — Andrew Louth

My theories explain, but cannot slow the decline of a great civilization. I set out to be a reformer, but only became the historian of decline. — Ludwig Von Mises

Since, as is well know, God helps those who help themselves, presumably the Devil helps all those, and only those, who don't help themselves. Does the Devil help himself? — Douglas Hofstadter

I had set out to disprove quantum field theory - and the opposite occurred! I was shocked. — David Gross

A company is a multidimensional system capable of growth, expansion, and self-regulation. It is, therefore, not a thing but a set of interacting forces. Any theory of organization must be capable of reflecting a company's many facets, its dynamism, and its basic orderliness. When company organization is reviewed, or when reorganizing a company, it must be loked upon as a whole, as a total system. — Albert Low

Later generations will regard Mengenlehre (set theory) as a disease from which one has recovered. — Henri Poincare

There is, we are aware, a philosophy that denies the infinite. There is also a philosophy, classified as pathologic, that denies the sun; this philosophy is called blindness. To set up a theory that lacks a source of truth is an excellent example of blind assurance. And the odd part of it is the haughty air of superiority and compassion assumed toward the philosophy that sees God, by this philosophy that has to grope its way. It makes one think of a mole exclaiming, "How I pity them with their sun!" There are, we know, illustrious and powerful atheists; with them, the matter is nothing but a question of definitions, and at all events, even if they do not believe in God, they prove God, because they are great minds. We hail, in them, the philosophers, while, at the same time, inexorably disputing their philosophy. — Victor Hugo

As they prepared themselves to go ashore no one doubted in theory that at least a certain percentage of them would remain on the island dead, once they set foot on it. But no one expected to be one of these. Still it was an awesome thought and as the first contingents came struggling up on deck in full gear to form up, all eyes instinctively sought out immediately this island where they were to be put, and left, and which might possibly turn out to be a friend's grave. — James Jones

Science has authority, not because of white coats, or titles, but because of precision and transparency: you explain your theory, set out your evidence, and reference the studies that support your case. — Ben Goldacre

CANNOT BELIEVE BOTH GOSPEL AND EVOLUTION. I say most emphatically, you cannot believe in this theory of the origin of man, and at the same time accept the plan of salvation as set forth by the Lord our God. You must choose the one and reject the other, for they are in direct conflict and there is a gulf separating them which is so great that it cannot be bridged, no matter how much one may try to do so. — Joseph Fielding Smith

Time travel used to be thought of as just science fiction, but Einstein's general theory of relativity allows for the possibility that we could warp space-time so much that you could go off in a rocket and return before you set out. — Stephen Hawking

In great cities where people of ability abound, there is always a feverish urge to keep ahead, to set the pace, to adopt each new fashion in thought and theory as well as in dress - or undress. — Charlotte Perkins Gilman

Theory did a great work pant, and everyone was doing denim. But no one was making a trouser sexy, or the focus of an outfit ... So, that's what I set out to do. — Stacey Bendet

When [Jesus] wanted fully to explain what his forthcoming death was all about He didn't give a theory. He didn't even give them a set of Scriptural texts. He gave them a meal. — Rachel Held Evans

One might get the impression that I recommend a new methodology which replaces induction by counterinduction and uses a multiplicity of theories, metaphysical views, fairy tales, instead of the customary pair theory/observation. This impression would certainly be mistaken. My intention is not to replace one set of general rules by another such set: my intention is rather to convince the reader that all methodologies, even the most obvious ones, have their limits. — Paul Feyerabend

To the average mathematician who merely wants to know his work is securely based, the most appealing choice is to avoid difficulties by means of Hilbert's program. Here one regards mathematics as a formal game and one is only concerned with the question of consistency ... The Realist position is probably the one which most mathematicians would prefer to take. It is not until he becomes aware of some of the difficulties in set theory that he would even begin to question it. If these difficulties particularly upset him, he will rush to the shelter of Formalism, while his normal position will be somewhere between the two, trying to enjoy the best of two worlds. — Paul Cohen

No one shall expel us from the paradise which Cantor has created for us.

{Expressing the importance of Georg Cantor's set theory in the development of mathematics.} — David Hilbert

And because the constitution of a mans Body, is in continuall mutation; it is impossible that all the same things should alwayes cause in him the same Appetites, and aversions; much lesse can all men consent, in the Desire of almost any one and the same Object.
Good Evill
But whatsoever is the object of any mans Appetite or Desire; that is it, which he for his part calleth Good: And the object of his Hate, and Aversion, evill, And of his contempt, Vile, and Inconsiderable. For these words of Good, evill, and Contemptible, are ever used with relation to the person that useth them: There being nothing simply and absolutely so; nor any common Rule of Good and evill, to be taken from the nature of the objects themselves; but from the Person of the man (where there is no Common-wealth;) or, (in a Common-wealth,) From the Person that representeth it; or from an Arbitrator or Judge, whom men disagreeing shall by consent set up, and make his sentence the Rule thereof. — Thomas Hobbes

Monotheistic religions in the West have tended to conflate having a general orientation in life, having a specific theory of the world, having a sense of the positive meaningfulness of one's existence, and having a fixed set of rules for behavior, but these elements are in principle separable ... The "metaphysical need," ... both Marx and Nietzsche held, is a historical phenomenon that arises under determinate circumstances, and could be expected to disappear under other circumstances that we could relatively easily envisage. — Raymond Geuss

I have little hesitation in saying that as a result a sickly pall now hangs over the big bang theory. As I have mentioned earlier, when a pattern of facts becomes set against a theory, experience shows that it rarely recovers. — Fred Hoyle

If we expect translation to reproduce the totality of the semantics and affective uses of the original text, then we believe that translation must be loyal to the seminal language system, rather than letting the discourse travel and undertake the adventure of discovering - or creating - a new set of meaning according to the politics of the translation itself. Rigid loyalty to the original in the translated version was, in effect, the intentionality of the translation of the doctrines and precepts that constituted the colonial discourse. — Hector Dominguez Ruvalcaba

When your practice has led you to experiences that you can't understand, you need a better theory. Otherwise, if you try to understand these transcendent experiences with 'profane' or, we might say, 'materialistic' ways of thinking, your cultivation will be set back. — Betty Sue Flowers

Somewhere there is mystery. It impels one to theosophy: to the worship of a space-god, or a god of light." "Theory dissolves the mystery, though it lays bare a cryptic new stratum. Quite likely there is an endless set of these layers, mystery below mystery. — Jack Vance

In the theory of psycho-analysis we have no hesitation in assuming that the course taken by mental events is automatically regulated by the pleasure principle. We believe, that is to say, that the course of those events is invariably set in motion by an unpleasurable tension, and that it takes a direction such that its final outcome coincides with a lowering of that tension that is, with an avoidance of unpleasure or a production of pleasure. — Sigmund Freud

design is a term that bridges theory and practice. It encompasses both a principled approach and a set of contextualized practices that are constantly adapting to circumstances. — Helen Beetham

I have tried to set forth a theory that enables us to understand and to assess these feelings about the primacy of justice. Justice as fairness is the outcome: it articulates these opinions and supports their general tendency. — John Rawls

Of course, the set of logically consistent mathematical structures is many times larger than the set of physical principles. Therefore, some mathematical structures, such as number theory (which some mathematicians claim to be the purest branch of mathematics), have never been incorporated into any physical theory. Some argue that this situation may always exist: Perhaps the human mind will always be able to conceive of logically consistent structures that cannot be expressed through any physical principle. However, there are indications that string theory may soon incorporate number theory into its structure as well. — Michio Kaku

Every sensitive person should make his point of view let known, at least, to one person other than yourself on every subject that gets you worked up. This is basic to every social being. And like theory of vibration it gains momentum as the time passes. However, it also happens that it can turn out to be wasted effort. Because we are common people. The fact that we are of no consequence, so are our utterances and statements, makes us indifferent to a lot of issues and situations around us. However, in a set-up we live in, it becomes incumbent upon every educated individual to air our views for the general good of all. Like wise, as public-spirited individuals we must believe in doing something, rather than grumble at home over the breakfast table that the World is not a pleasant place. After all, lighting a lamp is wiser than cursing the darkness. — Manasa Rao

It is foolish, generally speaking, for a philosopher to set fire to another philosopher in Smithfield Market because they do not agree in their theory of the universe. That was done very frequently in the last decadence of the Middle Ages, and it failed altogether in its object. But there is one thing that is infinitely more absurd and unpractical than burning a man for his philosophy. This is the habit of saying that his philosophy does not matter, and this is done universally in the twentieth century, in the decadence of the great revolutionary period. — G.K. Chesterton

What is missing from the policy analyst's tool kit
and from the set of accepted, well-developed theories of human organization
is an adequately specified theory of collective action whereby a group of principals can organize themselves voluntarily to retain the residuals of their own efforts. — Elinor Ostrom

The uncertainty principle signaled an end to Laplace's dream of a theory of science, a model of the universe that would be completely deterministic. We certainly cannot predict future events exactly if we cannot even measure the present state of the universe precisely!
We could still imagine that there is a set of laws that determine events completely for some supernatural being who, unlike us, could observe the present state of the universe without disturbing it. However, such models of the universe are not of much interest to us ordinary mortals. It seems better to employ the principle of economy known as Occam's razor and cut out all the features of the theory that cannot be observed. — Stephen Hawking

Theory provides the maps that turn an uncoordinated set of experiments or computer simulations into a cumulative exploration. — David E. Goldberg

In his ... 'Geometrical peculiarities of the Pyramids', Ballard shows the relationship between the equal area theory and the golden number. After checking Herodotus' statement via dimensions Ballard concludes: 'I have therefore the authority of Herodotus to support the theory which I shall subsequently set forth, that this pyramid was the exponent of lines divided in mean and extreme ratio. — Roger Herz-Fischler

He is the so-called father of the modern school of chess; before him, the King was considered a weak piece and players set out to attack the King directly. Steinitz claimed that the King was well able to take care of itself, and ought not to be attacked until one had some other positional advantage. He understood more about the use of squares than Morphy and contributed a great deal more to chess theory. — Bobby Fischer

A falsifiable theory is one that makes a specific prediction about what results are supposed to occur under a set of experimental conditions, so that the theory might be falsified by performing the experiment and comparing predicted to actual results. A theory or explanation that cannot be falsified falls outside the domain of science. For example, Freudian psychoanalysis, which does not make specific experimental predictions, is able to revise its theory to match any observations, in order to avoid rejecting the theory altogether. By this reckoning, Freudianism is a pseudoscience, a theory that purports to be scientific but is in fact immune to falsification. In contrast, for example, Einstein's theory of relativity made predictions (like the bending of starlight around the sun) that were novel and specific, and provided opportunities to disprove the theory by direct experimental observation.
[The folly of scientism] — Austin L. Hughes

For, despite all our vague talk of ancient or medieval "science," pagan, Muslim, or Christian, what we mean today by science - its methods, its controls and guiding principles, its desire to unite theory to empirical discovery, its trust in a unified set of physical laws, and so on - came into existence, for whatever reasons, and for better or worse, only within Christendom, and under the hands of believing Christians. — David Bentley Hart

Individual and team discipline ultimately come down to practicing a small set of principles over a long period of time. Success is not a matter of mastering subtle, sophisticated theory, but rather embracing common sense with uncommon levels of discipline and persistence. Said in yet another way, discipline is to an athlete what scales are to a musician. Mastering the scales is what allows the musician to perform music. Mastering the skills of self discipline is what enables a person to become an accomplished elite athlete. — Mike Hebert

Business book writing for me is when some set of ideas gets stuck in my mind, I write a book about it. I haven't got a theory and I haven't got a framework. — Tom Peters

I'm signing on to be an athlete, and it's almost like Karl Marx's theory on capitalism. I am both the worker and the product. I'm choosing to be a part of this system, thus I'm choosing to be part of the conditions that are set in this system. — Lawrence Jackson

The purpose of studying opening theory should not be accumulating any set amount of knowledge, but being content with whatever knowledge one has. — Paul Van Der Sterren

Primary causes are unknown to us; but are subject to simple and constant laws, which may be discovered by observation, the study of them being the object of natural philosophy.
Heat, like gravity, penetrates every substance of the universe, its rays occupy all parts of space. The object of our work is to set forth the mathematical laws which this element obeys. The theory of heat will hereafter form one of the most important branches of general physics. — Joseph Fourier

We cannot see how the evidence afforded by the unquestioned progressive development of organised existence - crowned as it has been by the recent creation of the earth's greatest wonder, MAN, can be set aside, or its seemingly necessary result withheld for a moment. When Mr. Lyell finds, as a witty friend lately reported that there had been found, a silver-spoon in grauwacke, or a locomotive engine in mica-schist, then, but not sooner, shall we enrol ourselves disciples of the Cyclical Theory of Geological formations. — George Poulett Scrope

We were excited about getting jobs; we hardly went anywhere without filling out an application. But once we were hired - as furniture sanders - we could not believe this was really what people did all day. Everything we had thought of as The World was actually the result of someone's job. Each line on the sidewalk, each saltine. Everyone had a rotting carpet and a door to pay for. Aghast, we quit. There had to be a more dignified way to live. We needed time to consider ourselves, to come up with a theory about who we were and set it to music.
Something That Needs Nothing — Miranda July

That theory will be blown when she's conferring with the event security, wearing an earpiece and holstering a firearm under her business suit. Or if she perceives a threat and pulls a gun, because she - and no offense, sweetheart - looks awful trigger-happy."
She set her forearms on the table. "You have no idea how true that statement is. But right now the person I'd be gunning for most is you, sweetheart." Then she smiled.
Holy shit. The smile completely transformed her face - but Devin wasn't sure if it was a good thing or a bad thing because the grin straddled the line between sexy and evil. — Lorelei James

When I dealt with set theory, I could never make it be the music that I wanted. — Harrison Birtwistle

In general, inquiry ceases when we adopt a theory. After that, we overlook whatever makes against it, and see and think, and talk and write, only in its favor. Indeed, when we have a snug, comfortable theory, to which we are much attached, they appear to us as a very mean set of facts that will not square with it. — Christian Nestell Bovee

Cantor's discovery that lines, planes, cubes, and polytopes were all equivalent as sets of points goes a long way toward explaining why set theory was such a revolutionary development for math-revolutionary in theory and practice both. — David Foster Wallace