It seems to me more and more that the immense efforts which during the great popularity of macroeconomics over the last thirty or forty years have been devoted to it, were largely misspent, and that if we want to be useful in the future we shall have to be content to improve and spread the admittedly limited insights which microeconomics conveys. I believe it is only microeconomics which enables us to understand the crucial functions of the market process: that it enables us to make effective use of information about thousands of facts of which nobody can have full knowledge.

The social sciences building at the University of Chicago indeed still bears since it was built 40 years ago on its outside an inscription taken from the famous physicist Lord Kelvin: "When you cannot measure, your knowledge is meager and unsatisfactory." I will admit that that may be true, but it is certainly not scientific to insist on measurement where you don't know what your measurements mean. There are cases where measurements are not relevant. What has done much damage to microeconomics is striving for a pseudo-exactness by imitating methods of the physical sciences which have to deal with what are fundamentally much more simple phenomena. And the assumption that it is possible to ascertain all the relevant particular facts still completely dominates the alternative methods of dealing with our constitutional ignorance, which economists have tried to overcome. This of course, is what has come to be called macroeconomics as distinct from microeconomics.

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The misconception that costs determined prices prevented economists for a long time from recognizing that it was prices which operated as the indispensable signals telling producers what costs it was worth expending on the production of the various commodities and services, and not the other way around. It was the costs which they had expended which determined the prices of things produced. It was this crucial insight which finally broke through and established itself about a hundred years ago through the so-called marginal revolution in economics. The chief insight gained by modern economists is that the market is essentially an ordering mechanism, growing up without anybody wholly understanding it, that enables us to utilize widely dispersed information about the significance of circumstances of which we are mostly ignorant. However, the various planners (and not only the planners in the socialist camp) and dirigists have still not yet grasped this.

I don’t have many strong dislikes. I admit that as a teacher—I have no racial prejudices in general—but there were certain types, and conspicuous among them the Near Eastern populations, which I still dislike because they are fundamentally dishonest. And I must say dishonesty is a thing I intensely dislike. It was a type which, in my childhood in Austria, was described as Levantine, typical of the people of the eastern Mediterranean. But I encountered it later, and I have a profound dislike for the typical Indian students at the London School of Economics, which I admit are all one type—Bengali moneylender sons. They are to me a detestable type, I admit, but not with any racial feeling. I have found a little of the same amongst the Egyptians —basically a lack of honesty in them. If I advise speaking about honesty, I think honesty is really the best expression of what I call the morals of a civilized society. Primitive man lacks a conception of honesty.

I have certainly never contended that generally authoritarian governments are more likely to secure individual liberty than democratic ones, but rather the contrary. This does not mean, however, that in some historical circumstances personal liberty may not have been better protected under an authoritarian than democratic government. (...) More recently I have not been able to find a single person even in much maligned Chile who did not agree that personal freedom was much greater under Pinochet than it had been under Allende. Nor have I heard any sensible person claim that in the principalities of Monaco or Lichtenstein, which I am told are not precisely democratic, personal liberty is smaller than anywhere else!

A limited democracy might indeed be the best protector of individual liberty and be better than any other form of limited government, but an unlimited democracy is probably worse than any other form of unlimited government, because its government loses the power even to do what it thinks right if any group on which its majority depends thinks otherwise. If Mrs. Thatcher said that free choice is to be exercised more in the market place than in the ballot box, she has merely uttered the truism that the first is indispensable for individual freedom, while the second is not: free choice can at least exist under a dictatorship that can limit itself but not under the government of an unlimited democracy which cannot.

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Nobody who has lived through the rise of the violent anti-Semitism which led to Hitler can refuse Mrs. Thatcher admiration for her courageous and outspoken warning. When I grew up in Vienna the established Jewish families were a generally respected group and all decent people would frown upon the occasional anti-Jewish outbursts of a few popular politicians. It was the sudden influx of large numbers of Galician and Polish Jews [during World War I] … which in a short period changed the attitude. They were too visibly different to be readily absorbed.

There can be no doubt that our innate moral emotions and instincts were acquired in the hundreds of thousand years—probably half a million years—in which Homo sapiens lived in small hunting and gathering groups and developed a physiological constitution which governed his innate instincts. These instincts are still very strong in us. Yet civilization developed by our gradually learning cultural rules which were trans­mitted by teaching and which served largely to restrain and suppress some of those natural instincts.

I suggested before that the whole of economic history could be rewritten in terms of this gradual suppression of the primitive in­stincts by what we very mistakenly call “artificial” rules. Of course, they are not in the strict sense artificial. Nobody ever invented them. They were not the result of design. The new manners of conduct were not adopted because anybody thought they were better. They were adopted because somebody who acted on them profited from it and his group gained from it, and so these rules, without anybody under­ standing them—that is very important for the later part of my argu­ment—without anybody understanding in what way they benefited their community, gradually came to be generally accepted.

I have arrived at the conviction that the neglect by economists to discuss seriously what is really the crucial problem of our time is due to a certain timidity about soiling their hands by going from purely scientific questions into value questions. This is a belief deliberately maintained by the other side because if they admitted that the issue is not a scientific question, they would have to admit that their science is antiquated and that, in academic circles, it occupies the position of astrology and not one that has any justification for serious consideration in scientific discussion. It seems to me that socialists today can preserve their position in academic economics merely by the pretense that the differences are entirely moral questions about which science cannot decide.

The next time I met Ludwig Wittgenstein was in the spring of 1928 when the economist Dennis Robertson, who was taking me for a walk through the Fellows' Gardens of Trinity College, Cambridge, suddenly decided to change course because on the top of a little rise he perceived the form of the philosopher draped over a deckchair. He evidently stood rather in awe of him, and he did not wish to disturb him.

What struck me most in this conversation was a radical passion for truthfulness in everything (which I came to know as a characteristic vogue among the young Viennese intellectuals of the generation immediately preceding mine only in the following university years). This truthfulness became almost a fashion in that border group between the purely Jewish and the purely Gentile parts of the intelligentsia in which I came so much to move. It meant much more than truth in speech. One had to "live" truth and not tolerate any pretence in oneself or others. It sometimes produced outright rudeness and, certainly, unpleasantness. Every convention was dissected and every conventional form exposed as fraud. Wittgenstein merely carried this further in applying it to himself. I sometimes felt that he took a perverse pleasure in discovering falsehood in his own feelings and that he was constantly trying to purge himself of all fraud.