The association of Marx before 1850's was made clear in an idea, but, it was not backed up in the words of economics. In Grundrisse der Kritik der Politischen Oekonomie 1857-1858, the association met a turning point. In Grundrisse, Marx made clear the material and moral conditions which beared the association in the structure of reproduction of capitalistic economy. Of course, in Grundrisse, the description was not suffi ciently developped and arranged, but, at the same time, Marx pointed out the germ of the association in the words of economics.