Hans F. Sennholz’s essay is a commemorative intellectual memoir that presents Mises as teacher, theorist, and embattled defender of capitalist civilization. The opening is personal: after immigrating, Sennholz sought American training and chose NYU because Mises taught there. This autobiographical frame matters because the essay treats Mises’s legacy as something transmitted through seminars, students, books, and acts of public loyalty such as the Festschrift and honorary degree.
When I discovered in a catalogue that Professor Ludwig von Mises was teaching at New York University, my choice was clear.
The main thesis is that Mises’s greatness lay in defending laissez-faire capitalism when academic and political opinion treated it as a defeated creed. Sennholz writes less as a neutral biographer than as a disciple explaining why Mises’s isolation was also his distinction: he opposed socialism not as a policy preference but as an error about human nature, property, prices, and freedom.
In the eyes of many academics, Professor Mises was an insurgent who meant to restore a thoroughly discredited system: laissez-faire capitalism.
Sennholz then reconstructs the adversary. Marxism drew force from older classical doctrines, especially labor-value reasoning, and from Marx’s habit of treating criticism as class interest rather than argument. Against this, the Austrian theory of subjective value and Böhm-Bawerk’s critique of exploitation theory undermined the economics of socialism. Yet Sennholz stresses that intellectual refutation did not stop the practical advance of intervention: labor legislation, tariffs, redistribution, social insurance, union privilege, and controls all weakened market order.
Mises’s decisive contribution was the calculation argument. In the 1920 essay and in Socialism, he maintained that without private ownership of capital goods, exchange, and market prices, planners cannot compare alternative uses of scarce resources. Sennholz presents this not as a narrow technical point but as the central reason socialism cannot coordinate production rationally. It also explains why Mises affected later liberals so strongly: he showed that socialist planning lacked the institutional conditions of economic reason.
When Ludwig von Mises appeared on the scene after World War I, there was no intellectual opposition to socialism in all its forms from guild socialism to Christian socialism, military socialism, national socialism, and communism.
The same logic structures Sennholz’s treatment of money and interventionism. Inflation becomes hidden expropriation through currency depreciation, and interventionism becomes an unstable compromise that preserves private titles while transferring real control to political authorities. In this reading, Liberalism, A Critique of Interventionism, and the monetary writings all defend one order: private property, peace, limited government, and consumer-directed production.
Sennholz also emphasizes Mises’s methodological works. Basic Problems of Economics, Nationalökonomie, and Human Action oppose historicism, relativism, and polylogism—the idea that classes, nations, or epochs have different logics. Praxeology gives economics a general foundation in purposive action, allowing Sennholz to present Human Action as the systematic culmination of Mises’s liberal social theory rather than a mere textbook.
The discussion of market socialism sharpens the political stakes. Lange’s proposal to simulate prices without capitalist ownership fails, in Sennholz’s account, because it cannot reproduce entrepreneurs, capital markets, speculation, risk bearing, or profit-and-loss responsibility. The decisive question is who directs production: buyers through market choice, or officials through command.
There can only be one master: either the consumer who is guiding businessmen or the commissar director who exerts absolute authority over the economic lives of the people.
The closing retrospect links Mises’s thought to the later collapse of socialist confidence. Sennholz notes that Mises did not live to see the Soviet empire fall, but he portrays that collapse as a vindication of arguments made long before events made them fashionable. The essay is therefore loyal memorial rather than detached biography. Its conceptual arc runs from subjective value to calculation, from monetary stability to anti-interventionism, and from liberalism to praxeology, portraying Mises as the scholar who explained socialism’s failure and equipped others to continue the defense of capitalism.
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