The education of all children, from the moment that they can get along without a mother's care, shall be in state institutions.

...it is all the more clear what we have to accomplish at present: I am referring to ruthless criticism of all that exists, ruthless both in the sense of not being afraid of the results it arrives at and in the sense of being just as little afraid of conflict with the powers that be.

For the bureaucrat, the world is a mere object to be manipulated by him.

Labor, being itself a commodity, is measured as such by the labor time needed to produce the labor-commodity. And what is needed to produce this labor-commodity? Just enough labor time to produce the objects indispensable to the constant maintenance of labor, that is, to keep the worker alive and in a condition to propagate his race. The natural price of labor is no other than the wage minimum.

The weapon of criticism can never replace the criticism of weapons.

The class struggle necessarily leads to the dictatorship of the proletariat.

A man cannot become a child again, or he becomes childish.