In my free time I do differential and integral calculus.

Necessity is blind until it becomes conscious. Freedom is the consciousness of necessity.

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

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.

In bourgeois society capital is independent and has individuality, while the living person is dependent and has no individuality.

Only in community with others has each individual the means of cultivating his gifts in all directions; only in the community, therefore, is personal freedom possible.

Without the presence of class warfare, trade unions would be hard put to justfy their existence.