The bureaucracy is a circle from which no one can escape. Its hierarchy is a hierarchy of knowledge.

Natural science will in time incorporate into itself the science of man, just as the science of man will incorporate into itself natural science: there will be one science.

As individuals express their life, so they are. What they are, therefore, coincides with their production, both with what they produce and with how they produce. The nature of individuals thus depends on the material conditions determining their production.

Wages are determined by the bitter struggle between capitalist and worker.

Social reforms are never carried out by the weakness of the strong; but always by the strength of the weak.

Society does not consist of individuals but expresses the sum of interrelations, the relations within which these individuals stand.

The French need a thrashing. If the Prussians win, the centralization of state power will be useful for the centralization of the German working class. German predominance would also transfer the center of gravity of the workers' movement in Western Europe from France to Germany, and one has only to compare the movement in the two countries from 1866 until now to see that the German working class is superior to the French both theoretically and organizationally.