Machines were, it may be said, the weapon employed by the capitalists to quell the revolt of specialized labor.

The rule of the bourgeois democrats [in pre-federal Germany], from the very first, will carry within it the seeds of its own destruction

Moments are the elements of profit

It is not history which uses men as a means of achieving - as if it were an individual person - its own ends. History is nothing but the activity of men in pursuit of their ends.

Every emancipation is a restoration of the human world and of human relationships to a man himself.

Just as the savage must wrestle with nature to satisfy his wants, to maintain and reproduce life, so must civilised man, and he must do so in all social formations and under all possible modes of production.

All social life is essentially practical. All mysterious which lead theory to mysticism find their rational solution in human practice and in the comprehension of the practice.