There was still the main obstacle to overcome: the devastating criticism
of the economists. Marx had a solution at hand. Human reason, he asserted,
is constitutionally unfitted to find truth. The logical structure of mind is
different with various social classes. There is no such thing as a universally
valid logic. What mind produces can never be anything but “ideology,” that
is, in the Marxian terminology, a set of ideas disguising the selfish interests
of the thinker’s own social class. Hence, the “bourgeois” mind of the
economists is utterly incapable of producing more than an apology for
capitalism. The teachings of “bourgeois” science, an offshoot of “bourgeois”
logic, are of no avail for the proletarians, the rising class destined to abolish
all classes and to convert the earth into a Garden of Eden.
Obviously, Mises was summarizing Marx’s view on the necessarily ideological nature of reasoning done by those living in a society with different social classes. He was not affirming that particular proposition; he was explaining it before providing a refutation.