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April 10, 2026
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"The liberal conception of freedom has often been described as a merely negative conception, and rightly so. Like peace and justice, it refers to the absence of an evil, to a condition op ening opportunities but not assuring particular benefits; though it was expected to enhance the probability that the means needed for the purposes pursued by the different individuals would be available. The liberal demand for freedom is thus a demand for the removal of all manmade obstacles to individual efforts, not a claim that the community or the state should supply particular goods. It does not preclude such collective action where it seems necessary, or at least a more effective way for securing certain services, but regards this as a matter of expediency and as such limited by the basic principle of equal freedom under the law. The decline of liberal doctrine, beginning in the 1870s, is closely connected with a re-interpretation of freedom as the command over, and usually the provision by the state of, the means of achieving a great variety of particular ends."
"There may be few instances in which the superstition that only measurable magnitudes can be important has done positive harm in the economic field: but the present inflation and employment problems are a very serious one."
"During the period of their formation these ideas, which in the nineteenth century came to be known as liberalism, were not yet described by that name. The adjective 'liberal' gradually assumed its political connotation during the later part of the eighteenth century when it was used in such occasional phrases as when Adam Smith wrote of 'the liberal plan of equality, liberty, and justice'. As the name of a political movement liberalism appears, however, only at the beginning of the next century, first when in 1812 it was used by the Spanish party of Liberales, and a little later when it was adopted as a party name in France. In Britain it came to be so used only after the Whigs and the Radicals joined in a single party which from the early 1840s came to be known as the Liberal Party. Since the radicals were inspired largely by what we have described as the Continental tradition, even the English Liberal Party at the time of its greatest influence was based on a fusion of the two traditions mentioned.In view of these facts it would be misleading to claim the term 'liberal' exclusively for either of the two distinct traditions. They have occasionally been referred to as the 'English', 'classical' or 'evolutionary', and as the 'Continental' or 'constructivistic' types respectively. In the following historical survey both types will be considered, but as only the first has developed a definite political doctrine, the later systematic exposition will have to concentrate on it."
"Freedom and risk are thus inseparable."
"I hope that what I have said so far has made it clear that the task we shall have to perform if we are to re-establish and preserve a free society is in the first instance an intellectual task: it presupposes that we not only recover conceptions which we have largely lost and which must once again become generally understood, but also that we design new institutional safeguards which will prevent a repetition of the process of gradual erosion of the safeguards which the theory of liberal constitutionalism had meant to provide."
"I am certain, however, that nothing has done so much to destroy the juridical safeguards of individual freedom as the striving after this mirage of social justice."
"I confess that I prefer true but imperfect knowledge, even if it leaves much indetermined and unpredictable, to a pretence of exact knowledge that is likely to be false. The credit which the apparent conformity with recognized scientific standards can gain for seemingly simple but false theories may, as the present instance shows, have grave consequences."
"Differences in wealth, education, tradition, religion, language or race may today become the cause of differential treatment on the pretext of a pretended principle of social justice or of public necessity. Once such discrimination is recognised as legitimate, all safeguards of individual freedom of the liberal tradition are gone. If it is assumed that whatever the majority decides is just, even if what it lays down is not a general rule, but aims at affecting particular people, it would be expecting too much to believe that a sense of justice will restrain the caprice of the majority…"
"Today it is rarely understood that the limitation of all coercion to the enforcement of general rules of just conduct was the fundamental principle of classical liberalism, or, I would almost say, its definition of liberty."
"This older liberal conception of the necessary limitation of all power by requiring the legislature to commit itself to general rules has, in the course of the last century, been replaced gradually and almost imperceptibly by the altogether different though not easily distinguished conception that it was the approval of the majority which was the only and sufficient restraint on legislation. And the older conception was not only forgotten but no longer even understood. It was thought that any substantive limitation of the legislative power was unnecessary once this power was placed in the hands of the majority, because approval by it was regarded as an adequate test of justice. In practice this majority opinion usually represents no more than the result of bargaining rather than a genuine agreement on principles. Even the concept of the arbitrariness which democratic government was supposed to prevent changed its content: its opposite was no longer the general rules equally applicable to all but the approval of a command by the majority—as if a majority might not treat a minority arbitrarily."
"Historically, individual liberty has arisen only in countries in which law was not conceived to be a matter of arbitrary will of anybody but arose from the efforts of judges or jurisconsults to articulate as general rules the principles which govern the sense of justice."
"The insight that not all order that results from the interplay of human actions is the result of design is indeed the beginning of social theory. Yet the anthropomorphic connotations of the term 'order' are apt to conceal the fundamental truth that all deliberate efforts to bring about social order by arrangement or organisation (i.e. by assigning to particular elements specified functions or tasks) take place within a more comprehensive spontaneous order which is not the result of such design."
"Without the knowledge of such an order of the world in which we live, purposeful action would be impossible."
"The fundamental condition from which any intelligent discussion of the order of all social activities should start is the constitutional and irremediable ignorance both of the acting persons and of the scientist studying this order, of the multiplicity of particular, concrete facts which enter this order of human activities because they are known to some of its members."
"To discover the meaning of what is called 'social justice' has been one of my chief preoccupations for more than 10 years. I have failed in this endeavour—or rather, have reached the conclusion that, with reference to a society of free men, the phrase has no meaning whatever."
"The recognition of the insuperable limits to his knowledge ought indeed to teach the student of society a lesson of humility which should guard him against becoming an accomplice in men's fatal striving to control society—a striving which makes him not only a tyrant over his fellows, but which may well make him the destroyer of a civilization which no brain has designed but which has grown from the free efforts of millions of individuals."
"As we advance we find more and more frequently that we can in fact ascertain only some but not all the particular circumstances which determine the outcome of a given process; and in consequence we are able to predict only some but not all the properties of the result we have to expect. Often all that we shall be able to predict will be some abstract characteristic of the pattern that will appear—relations between kinds of elements about which individually we know very little. Yet, as I am anxious to repeat, we will still achieve predictions which can be falsified and which therefore are of empirical significance.Of course, compared with the precise predictions we have learnt to expect in the physical sciences, this sort of mere pattern predictions is a second best with which one does not like to have to be content. Yet the danger of which I want to warn is precisely the belief that in order to have a claim to be accepted as scientific it is necessary to achieve more. This way lies charlatanism and worse. To act on the belief that we possess the knowledge and the power which enable us to shape the processes of society entirely to our liking, knowledge which in fact we do not possess, is likely to make us do much harm. In the physical sciences there may be little objection to trying to do the impossible; one might even feel that one ought not to discourage the over-confident because their experiments may after all produce some new insights. But in the social field the erroneous belief that the exercise of some power would have beneficial consequences is likely to lead to a new power to coerce other men being conferred on some authority. Even if such power is not in itself bad, its exercise is likely to impede the functioning of those spontaneous ordering forces by which, without understanding them, man is in fact so largely assisted in the pursuit of his aims. We are only beginning to understand on how subtle a communication system the functioning of an advanced industrial society is based—a communications system which we call the market and which turns out to be a more efficient mechanism for digesting dispersed information than any that man has deliberately designed.If man is not to do more harm than good in his efforts to improve the social order, he will have to learn that in this, as in all other fields where essential complexity of an organized kind prevails, he cannot acquire the full knowledge which would make mastery of the events possible. He will therefore have to use what knowledge he can achieve, not to shape the results as the craftsman shapes his handiwork, but rather to cultivate a growth by providing the appropriate environment, in the manner in which the gardener does this for his plants."
"The chief point we must remember is that the great and rapid advance of the physical sciences took place in fields where it proved that explanation and prediction could be based on laws which accounted for the observed phenomena as functions of comparatively few variables—either particular facts or relative frequencies of events."
"If I am not mistaken, psychology, psychiatry and some branches of sociology, not to speak about the so-called philosophy of history, are even more affected by what I have called the scientistic prejudice, and by specious claims of what science can achieve."
"The conflict between what in its present mood the public expects science to achieve in satisfaction of popular hopes and what is really in its power is a serious matter because, even if the true scientists should all recognize the limitations of what they can do in the field of human affairs, so long as the public expects more there will always be some who will pretend, and perhaps honestly believe, that they can do more to meet popular demands than is really in their power. It is often difficult enough for the expert, and certainly in many instances impossible for the layman, to distinguish between legitimate and illegitimate claims advanced in the name of science."
"[T]he confidence in the unlimited power of science is only too often based on a false belief that the scientific method consists in the application of a ready-made technique, or in imitating the form rather than the substance of scientific procedure, as if one needed only to follow some cooking recipes to solve all social problems. It sometimes almost seems as if the techniques of science were more easily learnt than the thinking that shows us what the problems are and how to approach them."
"[T]o entrust to science—or to deliberate control according to scientific principles—more than scientific methods can achieve may have deplorable effects. The progress of the natural sciences in modern times has of course so much exceeded all expectations that any suggestion that there may be some limits to it is bound to arouse suspicion. Especially all those will resist such an insight who have hoped that our increasing power of prediction and control, generally regarded as the characteristic result of scientific advance, applied to the processes of society, would soon enable us to mould society entirely to our liking."
"[A]llow me to define more specifically the inherent limitations of our numerical knowledge which are so often overlooked. I want to do this to avoid giving the impression that I generally reject the mathematical method in economics. I regard it in fact as the great advantage of the mathematical technique that it allows us to describe, by means of algebraic equations, the general character of a pattern even where we are ignorant of the numerical values which will determine its particular manifestation. We could scarcely have achieved that comprehensive picture of the mutual interdependencies of the different events in a market without this algebraic technique. It has led to the illusion, however, that we can use this technique for the determination and prediction of the numerical values of those magnitudes; and this has led to a vain search for quantitative or numerical constants."
"[T]he social sciences, like much of biology but unlike most fields of the physical sciences, have to deal with structures of essential complexity, i.e. with structures whose characteristic properties can be exhibited only by models made up of relatively large numbers of variables. Competition, for instance, is a process which will produce certain results only if it proceeds among a fairly large number of acting persons."
"[T]here may thus well exist better 'scientific' evidence for a false theory, which will be accepted because it is more 'scientific', than for a valid explanation, which is rejected because there is no sufficient quantitative evidence for it."
"It may well be that the chemist or physiologist is right when he decides that he will become a better chemist or physiologist if he concentrates on his subject at the expense of his general education. But in the study of society exclusive concentration on a speciality has a peculiarly baneful effect: it will not merely prevent us from being attractive company or good citizens but may impair our competence in our proper field—or at least for some of the most important tasks we have to perform. The physicist who is only a physicist can still be a first class physicist and a most valuable member of society. But nobody can be a great economist who is only an economist—and I am even tempted to add that the economist who is only an economist is likely to become a nuisance if not a positive danger."
"Unlike the position that exists in the physical sciences, in economics and other disciplines that deal with essentially complex phenomena, the aspects of the events to be accounted for about which we can get quantitative data are necessarily limited and may not include the important ones. While in the physical sciences it is generally assumed, probably with good reason, that any important factor which determines the observed events will itself be directly observable and measurable, in the study of such complex phenomena as the market, which depend on the actions of many individuals, all the circumstances which will determine the outcome of a process, for reasons which I shall explain later, will hardly ever be fully known or measurable. And while in the physical sciences the investigator will be able to measure what, on the basis of a prima facie theory, he thinks important, in the social sciences often that is treated as important which happens to be accessible to measurement. This is sometimes carried to the point where it is demanded that our theories must be formulated in such terms that they refer only to measurable magnitudes."
"It seems to me that this failure of the economists to guide policy more successfully is closely connected with their propensity to imitate as closely as possible the procedures of the brilliantly successful physical sciences—an attempt which in our field may lead to outright error. It is an approach which has come to be described as the 'scientistic' attitude—an attitude which, as I defined it some thirty years ago, 'is decidedly unscientific in the true sense of the word, since it involves a mechanical and uncritical application of habits of thought to fields different from those in which they have been formed'."
"On the other hand, the economists are at this moment called upon to say how to extricate the free world from the serious threat of accelerating inflation which, it must be admitted, has been brought about by policies which the majority of economists recommended and even urged governments to pursue. We have indeed at the moment little cause for pride: as a profession we have made a mess of things."
"The picture of man as a being who, thanks to his reason, can rise above the values of his civilisation, in order to judge it from the outside, or from a higher point of view, is an illusion. It simply must be understood that reason itself is part of civilisation. … [S]udden complete reconstruction of the whole is not possible at any stage of the process, because we must always use the material that is available, and which itself is the integrated product of a process of evolution."
"Hayek’s work in philosophy can be considered from another perspective than its methodology. When Hayek wrote that his philosophical studies should precede his political studies, he meant that in order to explain the sort of political system he favored, it was necessary to have greater understanding of the transmission and communication of information and knowledge. This is why he wished to travel to Italy and Greece. He thought that he might understand nonverbal knowledge better in doing so and might better understand the role of institutions in transmitting knowledge and information."
"At the same time, as Hayek maintained elsewhere, the facts of the social sciences do not lend themselves to the same degree of prediction, or explanation, as the facts of the natural sciences—it is for this reason that there are degrees of prediction or explanation. Prediction may be expressed numerically, moreover, “not as a unique value or magnitude but as a range,” narrow in the natural sciences and potentially very broad in the social sciences. In the social sciences, Hayek modified the conception of a numerical range to a “range of phenomena to expect.” This was his concept of pattern prediction, or explanation of the principle, broad, general predictions."
"If the human intellect is allowed to impose a preconceived pattern on society, if our powers of reasoning are allowed to lay claim to a monopoly of creative effort (and hence to recognition only of premeditated results), then we must not be surprised if society, as such, ceases to function as a creative force."
"We must make the building of a free society once more an intellectual adventure, a deed of courage. What we lack is a liberal Utopia, a programme which seems neither a mere defence of things as they are nor a diluted kind of socialism, but a truly liberal radicalism which does not spare the susceptibilities of the mighty (including the trade unions), which is not too severely practical and which does not confine itself to what appears today as politically possible. …The main lesson which the true liberal must learn from the success of the socialists is that it was their courage to be Utopian which gained them the support of the intellectuals and therefore an influence on public opinion which is daily making possible what only recently seemed utterly remote. Those who have concerned themselves exclusively with what seemed practicable in the existing state of opinion have constantly found that even this has rapidly become politically impossible as the result of changes in a public opinion which they have done nothing to guide. Unless we can make the philosophic foundations of a free society once more a living intellectual issue, and its implementation a task which challenges the ingenuity and imagination of our liveliest minds, the prospects of freedom are indeed dark. But if we can regain that belief in power of ideas which was the mark of liberalism at its best, the battle is not lost."
"Paradoxically enough, one of the main handicaps which deprives the liberal thinker of popular influence is closely connected with the fact that until socialism has actually arrived he had more opportunity of directly influencing decisions on current policy and that in consequence he was not only not tempted into that long-run speculation which is the strength of the socialists, but was actually discouraged from it, because any effort of this kind is likely to reduce the immediate good he can do."
"Socialism has never and nowhere been at first a working-class movement. It is by no means an obvious remedy for an obvious evil which the interests of that class will necessarily demand. It is a construction of theorists, deriving from certain tendencies of abstract thought with which for a long time only the intellectuals were familiar; and it required long efforts by the intellectuals before the working classes could be persuaded to adopt it as their programme."
"Unless we can make the philosophic foundations of a free society once more a living intellectual issue, and its implementation a task which challenges the ingenuity and imagination of our liveliest minds, the prospects of freedom are indeed dark. But if we can regain that belief in the power of ideas which was the mark of liberalism at its greatest, the battle is not lost. The intellectual revival of liberalism is already under way in many parts of the world. Will it be in time?"
"What we lack is a liberal Utopia, a program which seems neither a mere defense of things as they are nor a diluted kind of socialism, but truly liberal radicalism which does not spare the susceptibilities of the mighty (including the trade unions), which is not too severely practical and which does not confine itself to what appears today to be politically possible."
"In conclusion, the basic principles of a liberal society may be summed up by saying that in such a society all coercive functions of government must be guided by the overruling importance of what I like to call . Their achievement requires that in its coercive functions government shall be confined to the enforcement of such prohibitions (stated as abstract rules) as can be equally applied to all, and to exacting under the same uniform rules from all a share of the costs of the other, non-coercive services it may decide to render to the citizens with the material and personal means thereby placed at its disposal."
"While in graduate school I encountered the writings of Friedrich Hayek and Ludwig von Mises, which shook me out of my then socialist beliefs. There was Hayek's book of essays, Individualism and Economic Order, and Mises's wide-ranging and unsettling Socialism, which showed me I had not thought through any details — economic, social or cultural — of how socialism would work. One of their arguments in particular, about the impossibility of rational economic calculation under socialism, dumbfounded me. Whether or not the argument was ultimately judged to be correct, it was amazing, something I never would have thought of in a million years."
"There is all the difference in the world between treating people equally and attempting to make them equal. While the first is the condition of a free society, the second means as De Tocqueville describes it, 'a new form of servitude.'"
"We must face the fact that the preservation of individual freedom is incompatible with a full satisfaction of our views of distributive justice."
"The part of our social order which can or ought to be made a conscious product of human reason is only a small part of all the forces of society."
"I am certain that there are many who regard with impatience and distrust the whole tendency, which is inherent in all modern equilibrium analysis, to turn economics into a branch of pure logic, … are subject to no other test but internal consistency. But it seems that, if only this process is carried far enough, it carries its own remedy with it. In distilling from our reasoning about the facts of economic life those parts which are truly a priori, we not only isolate one element of our reasoning as a sort of Pure Logic of Choice in all its purity but we also isolate, and emphasize the importance of, another element which has been too much neglected. My criticism of the recent tendencies to make economic theory more and more formal is not that they have gone too far but that they have not yet been carried far enough to complete the isolation of this branch of logic and to restore to its rightful place the investigation of causal processes, using formal economic theory as a tool in the same way as mathematics."
"The peculiar character of the problem of a rational economic order is determined precisely by the fact that the knowledge of the circumstances of which we must make use never exists in concentrated or integrated form but solely as the dispersed bits of incomplete and frequently contradictory knowledge which all the separate individuals possess. The economic problem of society is thus not merely a problem of how to allocate "given" resources — if "given" is taken to mean given to a single mind which deliberately solves the problem set by these "data." It is rather a problem of how to secure the best use of resources known to any of the members of society, for ends whose relative importance only these individuals know. Or, to put it briefly, it is a problem of the utilization of knowledge which is not given to anyone in its totality. This character of the fundamental problem has, I am afraid, been rather obscured than illuminated by many of the recent refinements of economic theory, particularly by many of the uses made of mathematics."
"This is not a dispute about whether planning is to be done or not. It is a dispute as to whether planning is to be done centrally, by one authority for the whole economic system, or is to be divided among many individuals."
"The shipper who earns his living from using otherwise empty or half-filled journeys of tramp-steamers, or the estate agent whose whole knowledge is almost exclusively one of temporary opportunities, or the arbitrageur who gains from local differences of commodity prices—are all performing eminently useful functions based on special knowledge of circumstances of the fleeting moment not known to others. It is a curious fact that this sort of knowledge should today be generally regarded with a kind of contempt and that anyone who by such knowledge gains an advantage over somebody better equipped with theoretical or technical knowledge is thought to have acted almost disreputably. To gain an advantage from better knowledge of facilities of communication or transport is sometimes regarded as almost dishonest, although it is quite as important that society make use of the best opportunities in this respect as in using the latest scientific discoveries. This prejudice has in a considerable measure affected the attitude toward commerce in general compared with that toward production. Even economists who regard themselves as definitely immune to the crude materialist fallacies of the past constantly commit the same mistake where activities directed toward the acquisition of such practical knowledge are concerned—apparently because in their scheme of things all such knowledge is supposed to be “given.” The common idea now seems to be that all such knowledge should as a matter of course be readily at the command of everybody, and the reproach of irrationality leveled against the existing economic order is frequently based on the fact that it is not so available. This view disregards the fact that the method by which such knowledge can be made as widely available as possible is precisely the problem to which we have to find an answer."
"Fundamentally, in a system in which the knowledge of the relevant facts is dispersed among many people, prices can act to co-ordinate the separate actions of different people in the same way as subjective values help the individual to co-ordinate the parts of his plan."
"In abbreviated form, by a kind of symbol, only the most essential information is passed on and passed on only to those concerned. It is more than a metaphor to describe the price system as a kind of machinery for registering change, or a system of telecommunications which enables individual producers to watch merely the movement of a few pointers, as an engineer might watch the hands of a few dials, in order to adjust their activities to changes of which they may never know more than is reflected in the price movement."
"The problem is thus in no way solved if we can show that all the facts, if they were known to a single mind (as we hypothetically assume them to be given to the observing economist), would uniquely determine the solution; instead we must show how a solution is produced by the interactions of people each of whom possesses only partial knowledge. To assume all the knowledge to be given to a single mind in the same manner in which we assume it to be given to us as the explaining economists is to assume the problem away and to disregard everything that is important and significant in the real world."