KNOWLEDGE AND VALUE 31
reject the doctrine of the harmony of interests. The
socialists declare that there is irreconcilable conflict
among the interests of the various social classes of a
nation; while the interests of the proletarians demand
the substitution of socialism for capitalism, those of the
exploiters demand the preservation of capitalism. The
nationalists declare that the interests of the various
nations are irreconcilably in conflict.
It is obvious that the antagonism of such incompati-
ble doctrines can be resolved only by logical reasoning.
But the opponents of the harmony doctrine are not
prepared to submit their views to such examination.
As soon as somebody criticizes their arguments and
tries to prove the harmony doctrine they cry out bias.
The mere fact that only they and not their adversaries,
the supporters of the harmony doctrine, raise this *e-
proach of bias shows clearly that they are unable to
reject their opponents' statements by ratiocination.
They engage in the examination of the problems con-
cerned with the prepossession that only biased apolo-
gists of sinister interests can possibly contest the cor-
rectness of their socialist or interventionist dogmas. In
their eyes the mere fact that a man disagrees with their
ideas is the proof of his bias.
When carried to its ultimate logical consequences
this attitude implies the doctrine of polylogism. Poly-
logism denies the uniformity of the logical structure of
the human mind. Every social class, every nation, race,
or period of history is equipped with a logic that differs
from the logic of other classes, nations, races, or ages.
Hence bourgeois economics differs from proletarian