108 DETERMINISM AND MATERIALISM
Hence mankind never sets itself tasks other than those it
can solve, for closer observation will always discover
that the task itself only emerges where the material con-
ditions of its solution are already present or at least in
the process of becoming.
3
The most remarkable fact about this doctrine is that
it does not provide a definition of its basic concept, ma-
terial productive forces. Marx never told us what he had
in mind in referring to the material productive forces.
We have to deduce it from occasional historical exem-
plifications of his doctrine. The most outspoken of these
incidental examples is to be found in his book, The Pov-
erty of Philosophy, published in 1847 in French. It
reads:
The hand mill gives you feudal society, the steam
mill industrial capitalism.
4
This means that the state of
practical technological knowledge or the technological
quality of the tools and machines used in production is
to be considered the essential feature of the material
productive forces, which uniquely determine the pro-
duction relations and thereby the whole "superstruc-
ture." The production technique is the real thing, the
material being that ultimately determines the social,
political, and intellectual manifestations of human life.
This interpretation is fully confirmed by all other ex-
amples provided by Marx and Engels and by the re-
sponse every new technological advance roused in their
minds. They welcomed it enthusiastically because they
3.
K. Marx, Zur Kritik der politischen Oekonomie, ed. Kautsky
(Stuttgart, 1897), Preface, pp. x-xii.
4.
"Le moulin a bras vous donnera la society avec le souzerain; le
moulin a vapeur, la sotiete avec le capitaliste industriel." Marx, La
Misire de la philosophic (Paris and Brussels, 1847), p. 100.