Experimental Science Quotes & Sayings

Science is experimental, moving forward step-by-step, making trial and learning through success and failure. Is not this also the way of religion, and especially of the Christian religion? The writings of those who preach the religion have from the very beginning insisted that it is to be proved by experience. If a man is drawn towards honour and courage and endurance, justice, mercy, and charity, let him follow the way of Christ and find out for himself. No findings in science hinder him in that way. — William Henry Bragg

It was in the attempt to ascertain the interrelationships between species that experiments n genetics were first made. The words "evolution" and "origin of species" are now so intimately associated with the name of Darwin that we are apt to forger that the idea of common descent had been prominent in the mnds of naturalists before he wrote, and that, for more than half a century, zealous investigators had been devoting themselves to the experimental study of that possibility. Prominent among this group of experimenters may be mentioned Koelreauter, John Hunter, Herbert Knight, Gartner, Jordan. Naudin, Godron, Lecoq, Wichura
men whose names are familiar to every reader of Animals and Plants unders Domestication. — William Bateson

[The] first postulate of the Principle of Uniformity, namely, that the laws of nature are invariant with time, is not peculiar to that principle or to geology, but is a common denominator of all science. In fact, instead of being an assumption or an ad hoc hypothesis, it is simply a succinct summation of the totality of all experimental and observational evidence. — M. King Hubbert

In teaching man, experimental science results in lessening his pride more and more by proving to him every day that primary causes, like the objective reality of things, will be hidden from him forever and that he can only know relations. — Claude Bernard

Experimental science is the queen of knowledge. — Roger Bacon

The result is a complete fiasco. Our simple estimate of what the vacuum energy should be comes out to about 10105 joules per cubic centimeter. That's a lot of vacuum energy. What we actually observe is about 10-15 joules per cubic centimeter. So our estimate is larger than the experimental value by a factor of 10120 - a 1 followed by 120 zeroes. Not something we can attribute to experimental error. This has been called the biggest disagreement between theoretical expectation and experimental reality in all of science. — Sean Carroll

Believing, with Max Weber, that man is an animal suspended in webs of significance he himself has spun, I take culture to be those webs, and the analysis of it to be therefore not an experimental science in search of law but an interpretive one in search of meaning. — Clifford Geertz

The word 'proof' should strictly only be used when we are dealing with deductive inferences.... Popper claimed that scientists only need to use deductive inferences.... So if a scientist is only interested in demonstrating that a given theory is false, she may be able to accomplish her goal without the use of inductive inferences.... When a scientist collects experimental data, her aim might be to show that a particular theory...is false. She will have to resort to inductive reasoning.... So Popper's attempt to show that science can get by without induction does not succeed. — Samir Okasha

I went into science, ending up with a Ph.D. in cell biology, but along the way I found out that experimental science involves many hours and days and nights of laboratory work, which is a lot like washing dishes, only a little more challenging. I was too impatient, and maybe a little too sloppy, for it. — Barbara Ehrenreich

A recognized fact which goes back to the earliest times is that every living organism is not the sum of a multitude of unitary processes, but is, by virtue of interrelationships and of higher and lower levels of control, an unbroken unity. When research, in the efforts of bringing understanding, as a rule examines isolated processes and studies them, these must of necessity be removed from their context. In general, viewed biologically, this experimental separation involves a sacrifice. In fact, quantitative findings of any material and energy changes preserve their full context only through their being seen and understood as parts of a natural order. — Walter Rudolf Hess

The mere formulation of a problem is far more essential than its solution, which may be merely a matter of mathematical or experimental skills. To raise new questions, new possibilities, to regard old problems from a new angle requires creative imagination and marks real advances in science. — Albert Einstein

Michael Faraday, the son of a Yorkshire blacksmith, was born in south London in 1791. He was self-educated, leaving school at fourteen to become an apprentice bookbinder. He engineered his own lucky break into the world of professional science after attending a lecture in London by the Cornish scientist Sir Humphry Davy in 1811. Faraday sent the notes he had taken at the lecture to Davy, who was so impressed by Faraday's diligent transcription that he appointed him his scientific assistant. Faraday went on to become a giant of nineteenth-century science, widely acknowledged to have been one of the greatest experimental physicists of all time. Davy is quoted as saying that Faraday was his greatest scientific discovery. — Brian Cox

I oppose any belief that contradicts experimental evidence as determined by the methods of science. All beliefs not in such contradiction may be considered as faith. Whether faith in a particular belief is beneficial or not is another matter. — Alan Lightman

The end of the eighteenth and the beginning of the nineteenth century were remarkable for the small amount of scientific movement going on in this country, especially in its more exact departments ... Mathematics were at the last gasp, and Astronomy nearly so-I mean in those members of its frame which depend upon precise measurement and systematic calculation. The chilling torpor of routine had begun to spread itself over all those branches of Science which wanted the excitement of experimental research. — John Herschel

Do experimental work but keep in mind that other investigators in the same field will consider your discoveries as less than one fourth as important as they seem to you. — Charles Manning Child

An experimental science is supposed to perform experiments that find generalities. It's not just supposed to tally up a long list of individual cases and their unique life histories. That's butterfly collecting. — Richard Lewontin

The treatment of the indeterminacy principle as absolute and final can then be criticized as constituting an arbitrary restriction on scientific theories, since it does not follow from the quantum theory as such, but rather from the assumption of the unlimited validity of certain of its features, an assumption that can in no way ever be subjected to experimental proof. — David Bohm

Following the path of earlier unificationists, one of Eddington's aims was to reduce the contingencies in the description of nature, for example, by explaining the fundamental constants of physics rather than accepting them as merely experimental data. One of these constants was the fine-structure constant ... , which entered prominently in Dirac's theory and was known to be about 1/137. — Helge Kragh

Psychology, as the behaviorist views it, is a purely objective, experimental branch of natural science which needs introspection as little as do the sciences of chemistry and physics ... The position is taken here that the behavior of man and the behavior of animals must be considered in the same plane. — John B. Watson

The great problem of today is, how to subject all physical phenomena to dynamical laws. With all the experimental devices, and all the mathematical appliances of this generation, the human mind has been baffled in its attempts to construct a universal science of physics. — Joseph Lovering

The most essential characteristic of scientific technique is that it proceeds from experiment, not from tradition. The experimental habit of mind is a difficult one for most people to maintain; indeed, the science of one generation has already become the tradition of the next — Bertrand Russell

Experimental work provides the strongest evidence for scientific realism. This is not because we test hypotheses about entities. It is because entities that in principle cannot be 'observed' are manipulated to produce a new phenomena
[sic] and to investigate other aspects of nature. — Ian Hacking

Mathematics is an experimental science, and definitions do not come first, but later on. — Oliver Heaviside

For Bohr the theory came first, then the philosophical position, the interpretation constructed to make sense of what the theory says about reality. Einstein knew that it was dangerous to build a philosophical worldview on the foundation of any scientific theory. If the theory is found wanting in the light of new experimental evidence, then the philosophical position it supports collapses with it. 'it is basic for physics that one assumes a real world existing independently from any act of perception', said Einstein. 'But this we do not know'. — Manjit Kumar

It's sort of nice in more general terms to see that computational science, computational biology is being recognized. It's become a very large field, and it's always in some ways been the poor sister, or the ugly sister, to experimental biology. — Michael Levitt

One thing they don't tell you about doing experimental physics is that sometimes you must work under adverse conditions ... like a state of sheer terror. — William Kenneth Hartmann

If we could travel into the past, it's mind-boggling what would be possible. For one thing, history would become an experimental science, which it certainly isn't today. The possible insights into our own past and nature and origins would be dazzling. For another, we would be facing the deep paradoxes of interfering with the scheme of causality that has led to our own time and ourselves. I have no idea whether it's possible, but it's certainly worth exploring. — Carl Sagan

When chemists artificially produce an amino acid or a sugar they almost always synthesize only a single product at a time, which they manage by carefully controlling the experimental conditions for the selected reaction, such as temperature and the concentrations of the various ingredients, to optimize the synthesis of their target compound. This is not an easy task and requires careful control of many different conditions inside customized flasks, condensers, separation columns, filtration devices and other elaborate chemical apparatus. Yet every living cell in your body is continually synthesizing thousands of distinct biochemicals within a reaction chamber filled with just a few millionths of a microliter of fluid.*7 How do all those diverse reactions proceed concurrently? And how is all this molecular action orchestrated within a microscopic cell? These questions are the focus of the new science of systems biology; but it is fair to say that the answers remain mysterious! — Johnjoe McFadden

The strongest arguments prove nothing so long as the conclusions are not verified by experience. Experimental science is the queen of sciences and the goal of all speculation. — Roger Bacon

My final remark to young women and men going into experimental science is that they should pay little attention to the speculative physics ideas of my generation. After all, if my generation has any really good speculative ideas, we will be carrying these ideas out ourselves. — Martin L. Perl

I studied science and journalism at the University of Colorado and then got interested in experimental film there and started doing my own films. — Eric Darnell

How we, too, are still pious. - In science, convictions have no right of citizenship, so it is said and with good reason: only when they decide to descend to the modesty of a hypothesis, a provisional experimental standpoint, a regulative fiction, may they be granted admission and even a certain value in the realm of knowledge - though always with the restriction of remaining under police surveillance, under police suspicion. But, — Friedrich Nietzsche

The trouble is that you won't get the scientists to agree on a course of action. It is almost instinctive in science to accept contrary views, because disagreeing gives you guidance to experimental tests of ideas - your own and those offered by others ... . — Frederick Seitz

In the experimental sciences, the epochs of the most brilliant progress are almost always separated by long intervals of almost absolute repose. — Francois Arago

Anyone who wants to know the human psyche will learn next to nothing from experimental psychology. He would be better advised to abandon exact science, put away his scholar's gown, bid farewell to his study, and wander with human heart through the world. — Carl Jung

Experimental investigation, to borrow a phrase employed by Kepler respecting the testing of hypotheses, is "a very great thief of time." Sometimes it costs many days to determine a fact that can be stated in a line. — John William Draper

Taking him for all and all, I think it will be conceded that Michael Faraday was the greatest experimental philosopher the world has ever seen. — John Tyndall

Experimental science is fascinating, but I don't want to do it. I want other people to do it, and I'll read about it. — Barbara Ehrenreich

The experimental investigation by which Ampere established the law of the mechanical action between electric currents is one of the most brilliant achievements in science. The whole theory and experiment, seems as if it had leaped, full grown and full armed, from the brain of the 'Newton of Electricity'. It is perfect in form, and unassailable in accuracy, and it is summed up in a formula from which all the phenomena may be deduced, and which must always remain the cardinal formula of electro-dynamics. — James Clerk Maxwell

No scientist or student of science, need ever read an original work of the past. As a general rule, he does not think of doing so. Rutherford was one of the greatest experimental physicists, but no nuclear scientist today would study his researches of fifty years ago. Their substance has all been infused into the common agreement, the textbooks, the contemporary papers, the living present. — C.P. Snow

The social sciences are obsessed by epistemological questioning in a way that no science, no real science is. You never have a chemistry class that starts with the methodology of chemistry; you start by doing chemistry. And the problem is that since the social sciences don't know what it is to be scientific, because they know nothing about the real sciences, they imagine that they have to be listing endless numbers of criteria and precautions before doing anything. And they usually miss precisely what is interesting in natural sciences which is [LAUGHS] a laboratory situation and the experimental protocol! — Bruno Latour

Even in the dark times between experimental breakthroughs, there always continues a steady evolution of theoretical ideas, leading almost imperceptibly to changes in previous beliefs. — Steven Weinberg

My belief is based on the fact that string theory is the first science in hundreds of years to be pursued in pre-Baconian fashion, without any adequate experimental guidance. — Philip Warren Anderson

The theory of numbers, more than any other branch of mathematics, began by being an experimental science. Its most famous theorems have all been conjectured, sometimes a hundred years or more before they were proved; and they have been suggested by the evidence of a mass of computations. — G.H. Hardy

To be worthy of the name, an experimenter must be at once theorist and practitioner. While he must completely master the art of establishing experimental facts, which are the materials of science, he must also clearly understand the scientific principles which guide his reasoning through the varied experimental study of natural phenomena. We cannot separate these two things: head and hand. An able hand, without a head to direct it, is a blind tool; the head is powerless without its executive hand. — Claude Bernard

[I]t is necessary to insist upon this extraordinary but undeniable fact: experimental science has progressed thanks in great part to the work of men astoundingly mediocre, and even less than mediocre. That is to say, modern science, the root and symbol of our actual civilization, finds a place for the intellectually commonplace man and allows him to work therein with success. — Jose Ortega Y Gasset

With the aid of these active experimental sciences man becomes an inventor of phenomena, a real foreman of creation; and under this head we cannot set limits to the power that he may gain over nature through future progress of the experimental sciences. — Claude Bernard

Physical science enjoys the distinction of being the most fundamental of the experimental sciences, and its laws are obeyed universally, so far as is known, not merely by inanimate things, but also by living organisms, in their minutest parts, as single individuals, and also as whole communities. It results from this that, however complicated a series of phenomena may be and however many other sciences may enter into its complete presentation, the purely physical aspect, or the application of the known laws of matter and energy, can always be legitimately separated from the other aspects. — Frederick Soddy

This book explores an unrecognized but mighty taboo - our tacit conspiracy to ignore who, or what, we really are. Briefly, the thesis is that the prevalent sensation of oneself as a separate ego enclosed in a bag of skin is a hallucination which accords neither with Western science nor with the experimental philosophy-religions of the East - in particular the central and germinal Vedanta philosophy of Hinduism. This hallucination underlies the misuse of technology for the violent subjugation of man's natural environment and, consequently, its eventual destruction. — Alan W. Watts

Nature allows only experimental situations to occur which can be described within the framework of the formalism of quantum mechanics — Werner Heisenberg

Theology differs from science in many respects, because of its different subject matter, a personal God who cannot be put to the test in the way that the impersonal physical world can be subjected to experimental enquiry. Yet science and theology have this in common, that each can be, and should be defended as being investigations of what is, the search for increasing verisimilitude in our understanding of reality. — John Polkinghorne

While Einstein was still a patent clerk he had studied the work of the Austrian physicist Ernst Mach, for whom the goal of science was not to discern the nature of reality, but to describe experimental data, the 'facts', as economically as possible. — Manjit Kumar

Today, just two generations on, the Monte Carlo method (in various forms) so dominates some fields that many young scientists don't realize how thoroughly they've departed from traditional theoretical or experimental science. — Sam Kean

In a word, I consider hospitals only as the entrance to scientific medicine; they are the first field of observation which a physician enters; but the true sanctuary of medical science is a laboratory; only there can he seek explanations of life in the normal and pathological states by means of experimental analysis. — Claude Bernard

Will it be possible to solve these problems? It is certain that nobody has thus far observed the transformation of dead into living matter, and for this reason we cannot form a definite plan for the solution of this problem of transformation. But we see that plants and animals during their growth continually transform dead into living matter, and that the chemical processes in living matter do not differ in principle from those in dead matter. There is, therefore, no reason to predict that abiogenesis is impossible, and I believe that it can only help science if the younger investigators realize that experimental abiogenesis is the goal of biology. — Jacques Loeb

Experimental science hardly ever affords us more than approximations to the truth; and whenever many agents are concerned we are in great danger of being mistaken. — Humphry Davy

Philosophers of science constantly discuss theories and representation of reality, but say almost nothing about experiment, technology, or the use of knowledge to alter the world. This is odd, because 'experimental method' used to be just another name for scientific method ... I hope [to] initiate a Back-to-Bacon movement, in which we attend more seriously to experimental science. Experimentation has a life of its own. — Ian Hacking

Liebig was not a teacher in the ordinary sense of the word. Scientifically productive himself in an unusual degree, and rich in chemical ideas, he imparted the latter to his advanced pupils, to be put by them to experimental proof; he thus brought his pupils gradually to think for themselves, besides showing and explaining to them the methods by which chemical problems might be solved experimentally. — Hermann Kolbe

Observation and theory get on best when they are mixed together, both helping one another in the pursuit of truth. It is a good rule not to put overmuch confidence in a theory until it has been confirmed by observation. I hope I shall not shock the experimental physicists too much if I add that it is also a good rule not to put overmuch confidence in the observational results that are put forward until they have been confirmed by theory. — Arthur Eddington

Any work of science, no matter what its point of departure, cannot become fully convincing until it crosses the boundary between the theoretical and the experimental: Experimentation must give way to argument, and argument must have recourse to experimentation. — Gaston Bachelard

Experimental evidence has now verified that nuclear reactions can be caused to occur in heavily loaded solids. It is premature to predict where this is headed from an applications point of view, but the basic science is clearly revolutionary. — George H. Miley

There was a golden period that I look back upon with great regret, in which the cheapest of experimental animals were medical students. Graduate students were even better. In the old days, if you offered a graduate student a thiamine-deficient diet, he gladly went on it, for that was the only way he could eat. Science is getting to be more and more difficult. — George Wald

The lessons of science should be experimental also. The sight of a planet through a telescope is worth all the course on astronomy; the shock of the electric spark in the elbow outvalues all theories; the taste of the nitrous oxide, the firing of an artificial volcano, are better than volumes of chemistry. — Ralph Waldo Emerson

Every brilliant experiment, like every great work of art, starts with an act of imagination. Unfortunately, our current culture subscribes to a very narrow definition of truth. If something can't be quantified and calculated, then it can't be true. Because this strict scientific approach has explained so much, we assume that it can explain everything. But every method, even the experimental method, has limits. Take the human mind. Scientists describe our brain in terms of its physical details; they say we are nothing but a loom of electrical cells and synaptic spaces. What science forgets is that this isn't how we experience the world. (We feel like the ghost, not like the machine.) It is ironic but true: the one reality science cannot reduce is the only reality we will ever know. This is why we need art. By expressing our actual experience, the artist reminds us that our science is incomplete, that no map of matter will ever explain the immateriality of our consciousness. — Jonah Lehrer

Science is a system of statements based on direct experience, and controlled by experimental verification. Verification in science is not, however, of single statements but of the entire system or a sub-system of such statements. — Rudolf Carnap

Chemistry is necessarily an experimental science: its conclusions are drawn from data, and its principles supported by evidence from facts. — Michael Faraday

Physics has entered a remarkable era. Ideas that were once the realm of science fiction are now entering our theoretical - and maybe even experimental - grasp. Brand-new theoretical discoveries about extra dimensions have irreversibly changed how particle physicists, astrophysicists, and cosmologists now think about the world. The sheer number and pace of discoveries tells us that we've most likely only scratched the surface of the wondrous possibilities that lie in store. Ideas have taken on a life of their own. — Lisa Randall

I have a Ph.D. in cell biology. And that's really manual labor. I mean, experimental science, you do it with your hands. So it's very different. You're out there in a lab, cleaning test tubes, and it just wasn't that fascinating. — Barbara Ehrenreich

Strange, when one thinks of all the other boys, infinite experimental kisses, test tube infatuations, crushes, pseudo-loves.
All through this physical separation, through the testing and the trying of the others, there has been this peculiar rapport, comradeship, of us two so alike, so similar, but for science-boy and humanities-girl - the introspection, self examination, biannual deep summarizing conversations, and then the platonic parting. — Sylvia Plath

The very hope of experimental philosophy, its expectation of constructing the sciences into a true philosophy of nature, is basedon induction, or, if you please, the a priori presumption, that physical causation is universal; that the constitution of nature is written in its actual manifestations, and needs only to be deciphered by experimental and inductive research; that it is not a latent invisible writing, to be brought out by the magic of mental anticipation or metaphysical mediation. — Chauncey Wright

Science is defined in various ways, but today it is generally restricted to something which is experimental, which is repeatable, which can be predicted, and which is falsifiable. — Walter Lang

There was, I think, a feeling that the best science was that done in the simplest way. In experimental work, as in mathematics, there was 'style' and a result obtained with simple equipment was more elegant than one obtained with complicated apparatus, just as a mathematical proof derived neatly was better than one involving laborious calculations. Rutherford's first disintegration experiment, and Chadwick's discovery of the neutron had a 'style' that is different from that of experiments made with giant accelerators. — John Ashworth Ratcliffe

I came into science fiction at a very good time, when the doors were getting thrown open to all kinds of more experimental writing, more literary writing, riskier writing. It wasn't all imitation Heinlein or Asimov. And of course, women were creeping in, infiltrating. Infesting the premises. — Ursula K. Le Guin

If the aim of physical theories is to explain experimental laws, theoretical physics is not an autonomous science; it is subordinate to metaphysics. — Pierre Duhem

I saw the logic that they used, and the death of a thousand cuts as experimental scientists slowly chipped away at the belief that the world was an inexplicably powerful, magical place. Ultimately they failed, though. The magic never really went away. It waited, quietly, for people to return to it when they found the science wanting. — Deborah Harkness

One of the distinguishing features of anything that aspires to the name of science is the reproducibility of experimental results. — Matthew Stewart

I do not ... reject the use of statistics in medicine, but I condemn not trying to get beyond them and believing in statistics as the foundation of medical science ... Statistics ... apply only to cases in which the cause of the facts observed is still [uncertain or] indeterminate ... There will always be some indeterminism ... in all the sciences, and more in medicine than in any other. But man's intellectual conquest consists in lessening and driving back indeterminism in proportion as he gains ground for determinism by the help of the experimental method.. — Claude Bernard

Restoration ecology is experimental science, a science of love and altruism. In its attempts to reverse the processes of ecosystem degradation it runs exactly counter to the market system, to land speculation, to the whole cultural attitude of regarding the Earth as commodity rather than community. It is a soft-souled science. — Stephanie Mills

In these researches I followed the principles of the experimental method that we have established, i.e., that, in presence of a well-noted, new fact which contradicts a theory, instead of keeping the theory and abandoning the fact, I should keep and study the fact, and I hastened to give up the theory. — Claude Bernard

Experimental science is a craft and an art, and part of the art is knowing when to end a fruitless experiment. There is a danger of becoming obsessed with a fruitless experiment even if it goes nowhere. It is always a good plan for a speculative experimenter to have two experiments going, or at least one going and one being built. — Martin Lewis Perl

The seers of ancient India had, in their experiments and efforts at spiritual training and the conquest of the body, perfected a discovery which in its importance to the future of human knowledge dwarfs the divinations of Newton and Galileo , even the discovery of the inductive and experimental method in Science was not more momentous ... — Sri Aurobindo

Our experience teaches us that there are indeed laws of nature, regularities in the way things behave, and that these laws are best expressed using the language of mathematics. This raises the interesting possibility that mathematical consistency might be used to guide us, along with experimental observation, to the laws that describe physical reality, and this has proved to be the case time and again throughout the history of science. We will see this happen during the course of this book, and it is truly one of the wonderful mysteries of our universe that it should be so. — Brian Cox

As in Mathematicks, so in Natural Philosophy, the Investigation of difficult Things by the Method of Analysis, ought ever to precede the Method of Composition. This Analysis consists in making Experiments and Observations, and in drawing general Conclusions from them by Induction, and admitting of no Objections against the Conclusions, but such as are taken from Experiments, or other certain Truths. For Hypotheses are not to be regarded in experimental Philosophy. — Isaac Newton

Facts, and facts alone, are the foundation of science ... When one devotes oneself to experimental research it is in order to augment the sum of known facts, or to discover their mutual relations. — Francois Magendie

The specific and unique presupposition for experimentation is, as remarkable as it may sound, that science become rational-mathematical, i.e., in the highest sense, not experimental. Initial positing of nature as such. Because modern "science" (physics) is mathematical (not empirical), it is necessarily experimental in — Martin Heidegger

I do not think the division of the subject into two parts - into applied mathematics and experimental physics a good one, for natural philosophy without experiment is merely mathematical exercise, while experiment without mathematics will neither sufficiently discipline the mind or sufficiently extend our knowledge in a subject like physics. — Balfour Stewart

The science of constructing a commonwealth, or renovating it, or reforming it, is, like every other experimental science, not to be taught a priori. Nor is it a short experience that can instruct us in that practical science, because the real effects of moral causes are not always immediate. — Edmund Burke

Mathematics has two faces: it is the rigorous science of Euclid, but it is also something else. Mathematics presented in the Euclidean way appears as a systematic, deductive science; but mathematics in the making appears as an experimental, inductive science. Both aspects are as old as the science of mathematics itself. — George Polya

Science is objective. And in my view we cannot take any experimental results seriously except in the light of good explanations of them. — David Deutsch

Nature is our kindest friend and best critic in experimental science if we only allow her intimations to fall unbiased on our minds. — Michael Faraday

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

Scientific truth is characterized by its exactness and the rigorous quality of its assumptions. But experimental science wins these admirable qualities at the cost of maintaining itself on a plane of secondary problems and leaving the decisive and ultimate questions intact. Out of this renunciation it makes its essential virtue, and for this, if for nothing else, it deserves applause. But experimental science is only a meager portion of the mind and the organism. Where it stops, man does not stop. If the physicist stays the hand with which he delineates things at the point where his methods end, the human being who stands behind every physicist prolongs the line and carries it on to the end, just as our eye, seeing a portion of a broken arch, automatically completes the missing airy curve. — Jose Ortega Y Gasset

It was my good fortune to be linked with Mme. Curie through twenty years of sublime and unclouded friendship. I came to admire her human grandeur to an ever growing degree. Her strength, her purity of will, her austerity toward herself, her objectivity, her incorruptible judgement - all these were of a kind seldom found joined in a single individual ... The greatest scientific deed of her life - proving the existence of radioactive elements and isolating them - owes its accomplishment not merely to bold intuition but to a devotion and tenacity in execution under the most extreme hardships imaginable, such as the history of experimental science has not often witnessed. — Albert Einstein

I don't mind showing you my dick, Rosie. It could be for experimental purposes. Science. Although, it wouldn't be very fair to all the other men you will probably see, since I'm so big and girthy. — Meghan Quinn

One is almost tempted to say ... at last I can almost see a bond. But that will never be, for a bond does not really exist at all: it is a most convenient fiction which, as we have seen, is convenient both to experimental and theoretical chemists. — Charles Coulson

Hence, even in the domain of natural science the aid of the experimental method becomes indispensable whenever the problem set is the analysis of transient and impermanent phenomena, and not merely the observation of persistent and relatively constant objects. — Wilhelm Wundt

THE COLLECTED SHORT FICTION OF ORSON SCOTT CARD Experience Card's full versatility, from science fiction to fantasy, from traditional narrative poetry to modern experimental fiction. — Orson Scott Card

Eve and the apple was the first great step in experimental science. — James Bridie

A hypothesis or theory is clear, decisive, and positive, but it is believed by no one but the man who created it. Experimental findings, on the other hand, are messy, inexact things, which are believed by everyone except the man who did that work. — Harlow Shapley

It is one thing to say that science is only equipped to test for natural causes and cannot speak to any others. It is quite another to insist that science proves that no other causes could possibly exist ... There would be no experimental model for testing the statement: 'No supernatural cause for any natural phenomenon is possible.' It is therefore a philosophical presupposition and not a scientific finding. — Timothy Keller