The archive.

When Hume insisted that the rules of morality are not the work of reason, he supplied the thread Hayek follows through this 1983 plenary lecture, delivered at Chicago's conference on the unity of the sciences. Traditional morality, Hayek argues, is not a set of values that science can rationally construct but an inherited condition for the survival of modern humanity, the product of cultural evolution and group selection rather than design. Tracing the idea from Mandeville and the Scottish moralists to Darwin, he defends private property, the family, and religious sanction as unplanned restraints that made the extended order possible, and he indicts the rationalist line from Descartes to Marx and Keynes for treating such traditions as irrational. Socialism, he concludes, is the fatal conceit of an intelligentsia that trusts only what it can prove.

If you want to test this assertion, try to find a positivist who is not a socialist.

What should an association devoted to freedom do if its influence on ideas exceeds its effects on government? In this closing speech to the 1984 Mont Pèlerin Society meeting, Hayek answers as both founder and critic of deliberate social design. Recollections of isolated liberal thinkers finding one another lead to a defence of philosophical renewal rather than collective political intervention. His confidence in younger French economists sits alongside a sharper claim: reason depends on inherited practices—property, honesty, family—that it did not create. The 2022 edited English text, whose annotations correct several recollections, lets readers distinguish institutional memory from documented history while examining the tension between Hayek’s advocacy of intellectual change and his defence of moral inheritance.

I have to admit that the effects on practical politics have been very small. But the effects on the movement of ideas have been absolutely fundamental.

Returning to the terrain of his London lectures on Prices and Production, Hayek recasts production as a flow through time, a stream in which resources are allocated not only horizontally among goods but longitudinally among stages serving different future dates. Competitive relative prices supply the signals that keep this changing capital structure coordinated, work that no central planner, lacking the dispersed local knowledge, could perform. Against Keynes he insists that demand for commodities is not demand for labour, and that macroeconomics obscures the relative-price adjustments governing capital, wages, and intermediate goods. Disequilibrium, he argues, is not a flaw but the very thing that keeps the stream moving; price fixing, monopolistic wage-setting, and the craving for security only dam it. The remedy lies not in demand management but in better legal and monetary rules.

Genaugenommen kann eigentlich ein Strom niemals im Gleichgewicht sein, denn gerade das Ungleichgewicht hält ihn in Fluß und bestimmt seine Richtung.

English translation: “Strictly speaking, a stream can never really be in equilibrium, for it is precisely the disequilibrium that keeps it flowing and determines its direction.”

Cooperation among strangers depends on knowledge that no participant possesses in full. In this published lecture, Hayek asks how such an order can function—and why the solidarity appropriate to a small community might undermine it. His answer joins competitive prices to inherited restraints: property, consensual exchange, and promise-keeping allow people with different purposes to coordinate without agreeing on a common end. The sharpest tension concerns rewards. Hayek argues that market incomes guide productive choices even when they fail familiar tests of merit or justice, making distribution inseparable from future production. Readers can examine how his account of dispersed knowledge becomes an argument about morality and institutional scale, and where that explanation turns into his polemical claim that socialism rests on factual error rather than merely different values.

Open the issue of money to private enterprise, and let the public, not the state, decide which currencies it will hold: this is the proposal Hayek develops here, extending the argument of The Denationalization of Money. A government monopoly on issue, he contends, has blocked the kind of evolutionary experimentation long seen in law, language, and morals, leaving society ignorant of what the best money would even be. Competing private issuers, disciplined by the threat of depreciation and lost custom, would supply currencies of stable purchasing power, perhaps a unit he calls the Solid, redeemable against a weighted basket of widely traded raw materials. He argues that Gresham's law binds only under fixed exchange rates, doubts the gold standard can be restored, and urges that money be removed from political control and returned to the market's self-steering order.

It is really extraordinary that, as long as the discussion on money has been going on, everyone has accepted the right of government to provide us with money on an exclusive basis.

The 'arrogance of reason', the conceit that prosperity and civilization were consciously designed rather than inherited, gives this lecture its title and its target. Hayek denies that morality is a rational construction: like reason itself, it emerged through an evolutionary process, and the groups that adopted private property and the family could sustain denser populations and a deeper division of labour, displacing rivals who did not. Capitalism and socialism, on this account, are not positions within a shared morality but a clash between rival moral traditions, and he singles out Jacques Monod's claim that science has dissolved inherited ethics, along with Keynes's hostility to saving, as symptoms of a scientistic overreach. Science cannot invent a replacement ethics, he concludes, because a complex order draws on more knowledge than any planner, and he links Adam Smith's invisible hand to cybernetics and biology.

Die klassische moralische Tradition hat eine freie Gesellschaft geschaffen, indem sie den Menschen überredet hat, gewisse primitive Instinkte zu unterdrücken.

English translation: “The classical moral tradition created a free society by persuading men to suppress certain primitive instincts.”

Hayek recalls a time when hardly anyone seemed to be listening to the case for liberalism—and a change among younger thinkers he had not expected to see. This brief 1985 foreword to Arthur Seldon’s edited collection welcomes that change through a personal comparison: many contributors began on the Left, as Hayek himself once did. His recollections of the reception of The Road to Serfdom and The Constitution of Liberty lend specificity to his sense of intellectual isolation. Readers encounter not a demonstration of socialism’s failures, which he treats as established, but a compact statement of his hopes for liberal renewal: recovering classical economic ideas matters only if the young can apply them to contemporary concerns. His optimism remains conditional on understanding overcoming resistance—and on politicians not frustrating it.

A civil servant without an academic post, Ewald Schams earned Hayek’s respect through his command of economic theory and his interventions in Viennese discussions. In this short preface, written for a projected collection of Schams’s essays and presented here in English translation, Hayek recalls a reserved colleague educated under Schumpeter and familiar with both Austrian and Lausanne economics. His portrait offers a concrete glimpse of scholarly influence exercised through conversation, meticulous essays, and knowledge of competing theoretical traditions rather than a major treatise. It also traces Schams’s turn toward the history of economic thought and the French eighteenth-century books that eventually entered Hayek’s library. Affection is tempered by acknowledged gaps: Hayek cannot reconstruct Schams’s later isolation or establish how long he continued working.

How should a defeated Germany be brought back into the community of free nations? Writing in 1944, Hayek answers that its historians will decide, for nineteenth-century German scholarship had itself bred reverence for the power-state and expansionist nationalism. He rejects both imposed Allied textbooks and the fantasy of instant conversion, predicting instead a moral desert dotted with isolated 'oases' of sound thinking that private, non-governmental contacts must quietly sustain. Above all, he argues, Germans must recover a belief in objective historical truth and the historian's duty to moral judgment, to call Hitler bad, not merely explain him. Invoking Lord Acton, whose German training, Catholic faith, and early insight into power made him an ideal symbol, Hayek proposes an Acton Society to unite scholars committed to liberty, federalism, and opposition to totalitarianism of both Right and Left.

It is because, whether he wills it or not, the historian shapes the political ideals of the future, that he himself must be guided by the highest ideals and keep free from the political disputes of the day.

In a Vienna unsettled by war and inflation, why did university economists remain absorbed in the purest theory? Hayek’s autobiographical lecture, delivered in 1963 and later published as a prologue to The Fortunes of Liberalism, locates intellectual life as much in evening seminars and professional workplaces as in university chairs. His recollections show how bankers, officials, lawyers, and unpaid teachers sustained discussions that joined marginal utility to questions of money, socialism, and economic crises. The personal thread is unusually candid: American forecasting methods sharpened his skills without satisfying his theoretical questions, while his own business-cycle theory exposed weaknesses in its foundations in capital theory. Republished here in the 2013 edition, this unrevised lecture offers situated testimony about how economic problems took shape through conversation, practical experience, and disagreement.

Eleven languages were spoken in the battle Hayek served in as the Habsburg empire collapsed, the scene, he later said, that first turned his mind toward the problems of political organization. Assembled from autobiographical notes and interviews and published here in its 1994 form, this dialogue follows him from imperial Vienna through Mises's private seminar and the marginal-utility tradition of Menger, to the London School of Economics and his long duel with Keynes, and on to Chicago, Freiburg, and the Nobel. He recalls The Road to Serfdom, his essay 'Economics and Knowledge' on the market as a coordinator of dispersed knowledge, and the psychology of The Sensory Order. Throughout, he casts economics not as a mechanics of equilibrium but as a theory of adaptation to the unknowable, and socialism's central error as the conceit of designing society.

There are two alternative methods of ordering social affairs—competition and government direction. I am opposed to government direction, but I want to make competition work.

Does experience preserve sensations, or does it first make sensation possible? In this early manuscript essay, completed in September 1920 and presented in its 2017 English translation, Friedrich August von Hayek argues that sensory qualities emerge from relationships among neural impulses rather than belonging to impulses in isolation. His telephone-switchboard analogy gives the proposal a concrete shape: an incoming signal acquires significance through the connections it activates. Memory, on this account, is not merely a store of conscious impressions but a condition of their formation. Readers can trace how this developmental hypothesis explains both recognition and misperception, and confront its central epistemological tension: experience builds the framework governing later perception, yet that framework cannot be assumed to exhaust the world.

The connections between the physiological elements are thus the primary phenomenon that creates the mental phenomena.