Quotes & Sayings About Theory

Like any other science, yoga is applicable by people of every clime and time. The theory advanced by certain ignorant writers that yoga is "dangerous" or "unsuitable" for Westerners is wholly false, and has lamentably deterred many sincere students from seeking its manifold blessings. Yoga is a method for restraining the natural turbulence of thoughts, which otherwise impartially prevents all men, of all lands, from glimpsing their true nature of Spirit. Like the healing light of the sun, yoga is beneficial equally to men of the East and to men of the West. The thoughts of most persons are restless and capricious; a manifest need exists for yoga: the science of mind control. — Paramahansa Yogananda

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

All data are filtered, observation is necessarily 'theory-laden'. — Norwood Russell Hanson

Professor Ramachandran believes this synesthetic connection between our hearing and seeing senses was an important first step towards the creation of words in early humans. According to this theory, our ancestors would have begun to talk by using sounds that evoked the object they wanted to describe. For example, words referring to something small often involve making a synesthetic small i sound with the lips and a narrowing of the vocal tracts: Little, teeny, petite, whereas the opposite is true of words denoting something large or enormous. If the theory is right, then language emerged from the vast array of synesthetic connections in the human brain. — Daniel Tammet

Religious creeds are a great obstacle to any full sympathy between the outlook of the scientist and the outlook which religion is so often supposed to require ... The spirit of seeking which animates us refuses to regard any kind of creed as its goal. It would be a shock to come across a university where it was the practice of the students to recite adherence to Newton's laws of motion, to Maxwell's equations and to the electromagnetic theory of light. We should not deplore it the less if our own pet theory happened to be included, or if the list were brought up to date every few years. We should say that the students cannot possibly realise the intention of scientific training if they are taught to look on these results as things to be recited and subscribed to. Science may fall short of its ideal, and although the peril scarcely takes this extreme form, it is not always easy, particularly in popular science, to maintain our stand against creed and dogma. — Arthur Stanley Eddington

The task of the Church, I suggest, is not to determine which is the theory of the atonement, or which theory of the atonement has pride of place among others. Rather, following Thomas (who stands clearly in line with the majority position of the history of theology), we ought to witness to the fittingness of the atonement: to demonstrate how the death and resurrection of Jesus Christ brings together a wide array of benefits for the sake of the reconciliation of all things to God, that we might have as full an understanding as possible of the work God accomplished in Christ. — Adam J. Johnson

It is better to be a fool than to be dead. It is better to emit a scream in the shape of a theory than to be entirely insensible to the jars and incongruities of life and take everything as it comes in a forlorn stupidity. Some people swallow the universe like a pill; they travel on through the world, like smiling images pushed from behind. For God's sake give me the young man who has brains enough to make a fool of himself! — Robert Louis Stevenson

Superstring theories provide a framework in which the force of gravity may be united with the other three forces in nature: the weak, electromagnetic and strong forces. Recent progress has shown that the most promising superstring theories follow from a single theory. For the last generation, physicists have studied five string theories and one close cousin. Recently it has become clear that these five or six theories are different limiting cases of one theory which, though still scarcely understood, is the candidate for superunification of the forces of nature. — Edward Witten

What Copernicus really achieved was not the discovery of a true theory but of a fertile new point of view. — Ludwig Wittgenstein

A masterly analysis of how political interests, economic circumstances, development strategies, and local history have shaped what are surprisingly different versions of the welfare state across the developing world. The authors combine fine-grained country analyses with intelligent use of data, and explain and extend the theory and literature on the modern welfare state. The book is both scholarly and readable. — Nancy Birdsall

This led Montesquieu to become one of the earliest proponents of the trade theory of peace when he observed that hunting and herding nations often found themselves in conflict and wars, whereas trading nations "became reciprocally dependent," making peace "the natural effect of trade." The psychology behind the effect, Montesquieu speculated, was exposure of different societies to customs and manners different from their own, which leads to "a cure for the most destructive prejudices." Thus, he concluded, "we see that in countries where the people move only by the spirit of commerce, they make a traffic of all the humane, all the moral virtues. — Michael Shermer

The origins of graph theory are humble, even frivolous. — Norman L. Biggs

If you go with Marshall McLuhan's theory that the medium is the message, as soon as you're hosting a blooper show, you're done. — Bob Saget

Anthroposophy is not a game, nor just a theory; it is a task that must be faced for the sake of human evolution. — Rudolf Steiner

It has become a commonplace that aggressiveness also often has its roots in fear. I am inclined to think that this theory has been pushed too far. [ ... ] The type of aggressiveness that is the outcome of timidity is not, I think, that which inspires great leaders; the great leaders, I should say, have an exceptional self-confidence which is not only on the surface, but penetrates deep into the subconscious. — Bertrand Russell

The special theory of relativity owes its origins to Maxwell's equations of the electromagnetic field. — Albert Einstein

I think that the obscurity of the theory is not the fault of quantum mechanics but is rather due to the limited capacity of our imagination. When we try to "see" the quantum world, we are rather like moles used to living underground, to whom someone is trying to describe the Himalayas. Or like the men imprisoned at the back of Plato's cave. — Carlo Rovelli

Both the brightness and the spectrum of the X-rays are very different from what theory predicts. — Andrew Young

I don't know if I'm embarrassed because I think it's a funny show, but I could imagine there being a snootiness about it, but I do find 'The Big Bang Theory' very funny. I think that's a good show. I think it's fun, I like the actors; I think they're all doing a great job. — Stephen Merchant

Human knowledge as it actually is and can only ever be is not a revelation of something objectively and timelessly true, an assured grasp of something existing 'out there' independently of ourselves. It is what we have the best grounds at any given time for believing. Because this is what it is, it does indeed provide the best possible basis for our suppositions and actions. But it always remains our belief, our, conjecture, our hypothesis, our theory; and as such, fallible - and also, as such, a creation of the human mind. — Bryan Magee

This fundamental subject of Natural Selection will be treated at some length in the fourth chapter; and we shall then see how Natural Selection almost inevitably causes much Extinction of the less improved forms of life and induces what I have called Divergence of Character. In the next chapter I shall discuss the complex and little known laws of variation and of correlation of growth. In the four succeeding chapters, the most apparent and gravest difficulties on the theory will be given: namely, first, the difficulties of transitions, or in understanding how a simple being or a simple organ can be changed and perfected into a highly developed being or elaborately constructed organ; secondly the subject of Instinct, or the mental powers of animals, thirdly, Hybridism, or the infertility of species and the fertility of varieties when intercrossed; and fourthly, the imperfection of the Geological Record. In — Charles Darwin

The theory is that if you spill all your secrets, you'll have no desire to lie about anything, ever again. Like the worst about you is already in the open, so why not just be honest? — Veronica Roth

GREG ANNOUNCES HIS RESEARCH AS TO WHAT IS GOING ON:
'Alright I have a theory " he announced rejoining us and taking a healthy slug of scotch himself. "And if I'm right we're going to need more booze. And more ammo. And maybe an extra priest. — John G. Hartness

The First Insight Theory: Mysterious coincidences cause the reconsideration of the inherent mystery that surrounds our individual lives on this planet. — James Redfield

The agreements of human society embrace not only protection against murder, but thousands of other things, and it is certainly true that in America - not to mention other continents - the whites have excluded the blacks from some of the benefits of those agreements. It is said that the exclusion has sometimes even extended to murder - that in parts of this country a white man may kill a black one, if not with impunity, at least with a good chance of escaping the penalty which the agreement imposes. That's bad. It's deplorable, and I don't blame black men for resenting it. But you are confronted with a fact, not a theory, and how do you propose to change it? — Rex Stout

With a few exceptions, the critics of children's books are remarkably lenient souls ... Most of us assume there is something goodin every child; the critics go from this to assume there is something good in every book written for a child. It is not a sound theory. — Katharine Sergeant Angell White

The Stetson passage is an allusion to Frazer theory in The Golden Bough that religion originated as agricultural engineering. Through a grotesque process of literalization, all of the dying gods and heroes in The Golden Bough, along with Christ and the Fisher King, are transferred from mythic to modern consciousness ( Frazer himself was an unabashed positivist) to be made explicable in scientific terms as fertilizer. — Jewel Spears Brooker

The thing I want to do is put as many new ideas into the law as I can, to show how particular solutions involve general theory, and to do it with style. I should like to be admitted to be the greatest jurist in the world. — Oliver Wendell Holmes Jr.

Spreading straw might be considered rather unimportant, but it is fundamental to my method of growing rice and winter grain. It is connected with everything, with fertility, with germination, with weeds, with keeping away sparrows, with water management. In actual practice and in theory, the use of straw in farming is a crucial issue. This is something that I cannot seem to get people to understand. — Anonymous

The history of science knows scores of instances where an investigator was in the possession of all the important facts for a new theory but simply failed to ask the right questions. — Ernst Mayr

It is bigotry for public schools to teach only one theory of origins. — Clarence Darrow

Sometimes, we do not need a lot of words to convey meaning. For example, imagine a lovely sunset. — Richard Gentle

The theory called Euhemerism argued that all gods may have originally been only human rulers elevated to divinity by later generations for their benefits to mankind. — Daniel J. Boorstin

The theory which follows is entirely based on a calculus of pleasure and pain; and the object of economics is to maximize happiness by purchasing pleasure, as it were, at the lowest cost of pain. — William Stanley Jevons

We are at a time when postmodernism defies certainty, truth, and meaning; when spiritualism dabbles in quantum theory; and when randomness has become the order of the day. Isn't it ironic that at the same time, the world is on the edge of financial bankruptcy because we have conducted our financial affairs in a random fashion, as if there are no absolutes? — Ravi Zacharias

Once again, my colleague Stephen Hawking has upset the apple cart. The event horizon surrounding a black hole was once though to be an imaginary sphere. But recent theories indicate that it may actually be physical, maybe even a sphere of fire. But I don't trust any of these calculations until we have a full-blown string theory calculation, since Einstein's theory by itself is incomplete. — Michio Kaku

I don't subscribe to the theory that all politicians are crap. I think the 'cool people' often take that position. — Eddie Izzard

A theory of motivation is defective if it renders intelligible behaviour which is not intelligible. — Thomas Nagel

In his view, a theory was nothing more than a substitute for experience put forth by someone who didn't know what he was talking about. — Michael Crichton

Spiritual activity, education, civilization, culture, the idea are all vague, indefinite concepts, under the banner of which it is quite convenient to use words that have a still less clear meaning and therefore can easily be plugged into any theory. — Leo Tolstoy

The classical example of a successful research programme is Newton's gravitational theory: possibly the most successful research programme ever. — Imre Lakatos

It felt like religious kitsch, as tacky as a black velvet painting, the kind of fantasy that appealed to people who ate too much fried food, spanked their kids, and had no problem with the theory that their loving God invented AIDS to punish the gays. — Tom Perrotta

But actually theory is very practical. Gravity is a theory, for example. It allows you to predict that if you step off a cliff you will fall; you don't have to collect data on that. — Clayton Christensen

Fundamental security comes from realizing that you have broken through something. You reflect back and realize that you used to be extraordinarily paranoid and neurotic, watching each step you made, thinking you might lose your sanity, that situations were always threatening in some way. Now you are free of all those fears and preconceptions. You discover that you have something to give rather than having to demand from others, having to grasp all the time. For the first time, you are a rich person, you contain basic sanity. You have something to offer, you are able to work with your fellow sentient beings, you do not have to reassure yourself anymore. Reassurance implies a mentality of poverty--you are checking yourself, "Do I have it? How could I do it?" But the bodhisattva's delight in his richness is based upon experience rather than theory or wishful thinking. It is so, directly, fundamentally. He is fundamentally rich and so can delight in generosity. — Chogyam Trungpa

Maybe we should just love one another, even if we don't completely understand the things that people bear in their dark, strange hearts, even if the stars that other men and women are following seem invisible to us. If we make ourselves open to the humanity of others first, maybe understanding will follow. An incomprehensible theory of the universal isn't necessary if your only ambition is to embrace another soul. What you need, maybe all you need, in fact, is the willingness to love. — Jennifer Finney Boylan

The quality of instruction is very high at the Silverlake Conservatory of Music. It's not about being a rock star. It's about the fundamentals of music, theory and technique on a particular instrument, and playing in an ensemble or private setting. — Flea

We insist that this stuff we call science fiction is not SCI-FI. For some in the ghetto of Genre this is axiomatic, a secret truth known only to the genre kids, that there is proper science fiction and then there's that SCI-FI shit. — Hal Duncan

He knew that he was very near achieving the General Temporal Theory that the Ioti wanted so badly for their spaceflight and their prestige. He knew also that he had not achieved it and might never do so. He had never admitted either fact clearly to anyone. Before he left Anarres, he had thought the thing was in his grasp.
...
He wasn't quite sure he was ready to publish. There was something not quite right, something that needed a little refining. As he had been working ten years on the theory, it wouldn't hurt to take a little longer, to get it polished perfectly smooth. The little something not quite right kept looking wronger. A little flaw in the reasoning. A big flaw. A crack right through the foundations...The night before he left Anarres he had burned every paper he had on the General Theory. He had come to Urras with nothing. For half a year he had, in their terms, been bluffing them.

Or had he been bluffing himself? — Ursula K. Le Guin

The final outcome cannot be known, either to the originator of a new theory, or to his colleagues and critics, who are bent on falsifying it. Thus, the scientific innovator may feel all the more lonely and uncertain. — Peter D. Mitchell

Deism" in its own day referred not to a superficial theological doctrine but to a comprehensive intellectual tradition that ranged freely across the terrain we now associate with ethics, political theory, metaphysics, the philosophy of mind, and epistemology. It was an astonishingly coherent and systematic body of thought, closer to a way of being than any particular dogma, and it retained its essential elements over a span of centuries, not decades. In origin and substance, deism was neither British nor Christian, as the conventional view supposes, but largely ancient, pagan, and continental, and it spread in America far beyond the educated elite. — Matthew Stewart

The implication of game theory, which is also the implication of the third image, is, however, that the freedom of choice of any one state is limited by the actions of the others. — Kenneth Waltz

The worshiping community confesses and intercedes on the basis of, not the theory of God's existence, but the experience of a multigenerational community of witnesses. — Thomas C. Oden

It may be true that only those minds which are habituated to think logically can safely trust their intuitive conclusions, on the theory that the subconscious level will do its kind of work as faithfully as the conscious does its kind. — Richard M. Weaver

In Darwin's theory, you just have to substitute 'mutations' for his 'slight accidental variations' (just as quantum theory substitutes 'quantum jump' for 'continuous transfer of energy'). In all other respects little change was necessary in Darwin's theory ... — Erwin Schrodinger

But is the commercial theory of learning true? Daniel Anderson says that new research suggests that children actually don't like commercials as much as we thought they did because commercials don't tell stories, and stories have a particular salience and importance to young people. — Malcolm Gladwell

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

The physics are simple in theory, but in practice they are filled with the possibility for limitless error. — Christopher Pike

For Marx, 'pure' economic theory, that is economic theory which abstracts from a specific social structure, is impossible. — Ernest Mandel

No teaching that is not based on reason can be tolerated by critical minds, but the belief that an accident of blind force produces this highly organized world is far more fantastic than the theory that a Super Intelligence devised its ordered evolution. — Alice Hegan Rice

Although the formulations of science now offer the most advanced knowledge of nature, men continue to use obsolete forms of thought long discarded by scientific theory. In so far as these obsolete forms are superfluous for science, the fact that they persist violated the principle of the economy of thought, that characteristic trait of the bourgeois temper. — Max Horkheimer

A second possible approach to general systems theory is through the arrangement of theoretical systems and constructs in a hierarchy of complexity, roughly corresponding to the complexity of the "individuals" of the various empirical fields ... leading towards a "system of systems." ... I suggest below a possible arrangement of "levels" of theoretical discourse ... (vi) ... the "animal" level, characterized by increased mobility, teleological behavior and self-awareness ... — Kenneth E. Boulding

A mathematician says that an electromagnetic wave travels from Andromeda to your eye and that it also extends from Andromeda to your eye. — Bill Gaede

Should Cassandra initiate us, Sibyl? Matt asked, his eyes narrowed like he was testing a dangerous theory that could blow up in his face. — Josephine Angelini

The quantum theory is based on the idea that there is a probability that all possible events, no matter how fantastic or silly, might occur. — Michio Kaku

This irrelevance of molecular arrangements for macroscopic results has given rise to the tendency to confine physics and chemistry to the study of homogeneous systems as well as homogeneous classes. In statistical mechanics a great deal of labor is in fact spent on showing that homogeneous systems and homogeneous classes are closely related and to a considerable extent interchangeable concepts of theoretical analysis (Gibbs theory). Naturally, this is not an accident. The methods of physics and chemistry are ideally suited for dealing with homogeneous classes with their interchangeable components. But experience shows that the objects of biology are radically inhomogeneous both as systems (structurally) and as classes (generically). Therefore, the method of biology and, consequently, its results will differ widely from the method and results of physical science. — Walter M. Elsasser

In this nonfundamentalist understanding of faith, practice is more important than theory, love more important than law, and mystery is seen as an insight into truth rather than an obstacle. It is the great lie of our time that all religious faith has to be fundamentalist to be valid. — Andrew Sullivan

I'm a firm believer that in the theory that people only do their best at things they truly enjoy. It is difficult to excel at something you don't enjoy. — Jack Nicklaus

It is Jill's theory that in every life there is one dog.Other dogs may come and go, but there is one grande affaire. I feel that is probably right and yet it worries me, for it might mean that I am a fickle person. For I seem able to love deeply just the dog I am looking at. — Gladys Taber

He that travels in theory has no inconveniences. — Samuel Johnson

Darwin's theory shows the truth of naturalism: we are animals like any other; our fate and that of the rest of life on Earth are the same. Yet, in an irony all the more exquisite because no one has noticed it, Darwinism is now the central prop of the humanist faith that we can transcend our animal natures and rule the Eart. — John Gray

My theory is that church used to be that place. Instead of being a place where you went to look good, it was a place where you could risk going every week to look your worst. — Chuck Palahniuk

[I did] Some [reading to prep for Expelled]. I read one book cover to cover, From Darwin to Hitler , and that was a very interesting book
one of these rare books I wish had been even longer. It's about how Darwin 's theory
supposedly concocted by this mild-mannered saintly man, with a flowing white beard like Santa Claus
led to the murder of millions of innocent people. — Ben Stein

Consciousness is the awareness of the interaction and interdependence among mind, body, spirit, and the universe where it resides. — Debasish Mridha

Social psychology, the science of how people behave toward one another, is often a mishmash of interesting phenomena that are "explained" by giving them fancy names. Missing is the rich deductive structure of other sciences, in which a few deep principles can generate a wealth of subtle predictions - the kind of theory that scientists praise as "beautiful" or — Steven Pinker

I never thought that others would take my theories so much more seriously than I did. — Albert Einstein

When we encounter unexpected obstacles in finding out something which we wish to know, there are two possible courses to take. It may be that the right course is to treat the obstacle as a spur to further efforts; but there is a second possibility - that we have been trying to find something which does not exist. You will remember that that was how the relativity theory accounted for the apparent concealment of our velocity through the aether. — Arthur Stanley Eddington

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

In certain circumstances, financial markets can affect the so-called fundamentals which they are supposed to reflect. When that happens, markets enter into a state of dynamic disequilibrium and behave quite differently from what would be considered normal by the theory of efficient markets. Such boom/bust sequences do not arise very often, but when they do, they can be very disruptive, exactly because they affect the fundamentals of the economy. — George Soros

Seemingly by design, the American legal system encourages defense counsel to be as mendacious as possible. As Monroe Freedman, a legal ethicist and former dean of Hofstra Law School, has written, "The attorney is obligated to attack, if he can, the reliability or credibility of an opposing witness whom he knows to be truthful." It's an essential component of our adversarial system of justice, based on the theory that justice is best achieved not through a third-party investigation directed by an impartial judge but, instead, through vigorous disputation by the interested parties: trial by verbal combat. The — Jon Krakauer

The difference between guilt and shame is very clear
in theory. We feel guilty for what we do. We feel shame for what we are. A person feels guilt because he did something wrong. A person feels shame because he is something wrong. We may feel guilty because we lied to our mother. We may feel shame because we are not the person our mother wanted us to be. — Lewis B. Smedes

He worked for two months without pause. His functional day was twenty-two hours. He would try to go to sleep in a kind of buzz, and awaken two hours later with his thoughts exactly where he had left them. His diet was strictly coffee. (Even when healthy and at peace, Feigenbaum subsisted exclusively on the reddest possible meat, coffee, and red wine. His friends speculated that he must be getting his vitamins from cigarettes.) In the end, a doctor called it off. He prescribed a modest regimen of Valium and an enforced vacation. But by then Feigenbaum had created a universal theory. — James Gleick

Being spiritual-but-nonreligious sounds good in theory - at least it's better than attending antiquated religious institutions. We can do that. And we have. A growing number of us identify as spiritual-but-nonreligious. — Gudjon Bergmann

Entropy theory, on the other hand, is not concerned with the probability of succession in a series of items but with the overall distribution of kinds of items in a given arrangement. — Rudolf Arnheim

When you cross over into the weird stuff, there's no going back. Hector has a theory on it. Calls it the law of 'Anomalous Phenomena Attraction.' He explained it to me once. Didn't really pay attention, but it boils down to 'weird shit pulls in more weird shit. — A. Lee Martinez

Darwin may have been quite correct in his theory that man descended from the apes of the forest, but surely woman rose from the frothy sea, as resplendent as Aphrodite on her scalloped chariot. — Margot Datz

The justification for those actions was that we were living in a very hard, predatory, cloak-and-dagger world and that the only way to deal with a totalitarian enemy was to intimidate him. The trouble with this theory was that while we live in a world of plot and counterplot, we also live in a world of cause and effect. Whatever the cause for the decision to legitimize and regularize deceit abroad, the inevitable effect was the practice of deceit at home. — Norman Cousins

Government in and of itself is the foremost agent for destroying order and imposing chaos."
"To accept the legitimacy of the state is to embrace the necessity for war."
"Political theory would be fine in a perfect world, but in an uncertain one, it is a dangerous gamble. — L.K. Samuels

Now, from special relativity we know that energy and mass are two sides of the same coin: Greater energy means greater mass, and vice versa. Thus, according to string theory, the mass of an elementary particle is determined by the energy of the vibrational pattern of its internal string. Heavier particles have internal strings that vibrate more energetically, while lighter particles have internal strings that vibrate less energetically. — Brian Greene

If history is written by the victors, conspiracy theory is typically written by the losers, and there were few greater losers in the revolution than the French church and especially the Jesuits. — Mike Jay

That was 1986. That year I felt myself to be drowning in the news reports of murder. I was aware that these murders very often did not land upon the intended targets but fell upon great-aunts, PTA mothers, overtime uncles, and joyful children - fell upon them random and relentless, like great sheets of rain. I knew this in theory but could not understand it as fact until the boy with the small eyes stood across from me holding my entire body in his small hands. — Ta-Nehisi Coates

The end goal of feminist revolution must be ... not just the elimination of male privilage but of the sex distinction itself: genital differences between human beings would no longer matter culturally. — Shulamith Firestone

The shell game that we play ... is technically called 'renormalization'. But no matter how clever the word, it is still what I would call a dippy process! Having to resort to such hocus-pocus has prevented us from proving that the theory of quantum electrodynamics is mathematically self-consistent. It's surprising that the theory still hasn't been proved self-consistent one way or the other by now; I suspect that renormalization is not mathematically legitimate. — Richard P. Feynman

I loved him, you know, but I have a theory about love. I think that, however good it is, some love isn't meant to be for ever. — Cecelia Ahern

I don't know anything about music theory at all. Zero. But I don't really need to. — Amos Lee

Einstein explained his theory to me every day, and on my arrival I was fully convinced that he understood it. — Chaim Weizmann

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

Life is not theory. It is reality, with inherent duties to everything and everyone. — Tivadar Kosztka Csontvary

Philosophy is not in a state of external reflection on other domains, but in a state of active and internal alliance with them, and it is neither more abstract nor more difficult. — Gilles Deleuze

So when you ask me how string theory might be tested, I can tell you what's likely to happen at accelerators or some parts of the theory that are likely to be tested. — Edward Witten

The whole intention of empirical economics is to force theory down to Earth. — George Akerlof