“The slave frees himself when, of all the relations of private property, he abolishes only the relation of slavery and thereby becomes a proletarian; the proletarian can free himself only by abolishing private property in general.”

“In all probability, the proletarian revolution will transform existing society gradually and will be able to abolish private property only when the means of production are available in sufficient quantity. What will be the course of this revolution? Above all, it will establish a democratic constitution, and through this, the direct or indirect dominance of the proletariat.”

“Only by abolishing private property in land and building cheap and hygienic dwellings can the housing problem be solved.”

“The slave is sold once and for all; the proletarian must sell himself daily and hourly. The individual slave, property of one master, is assured an existence, however miserable it may be, because of the master’s interest. The individual proletarian, property as it were of the entire bourgeois class which buys his labor only when someone has need of it, has no secure existence. This existence is assured only to the class as a whole.”

“When private property is abolished there will be no necessity for crime, no demand for it; it will cease to exist.”

“Every change in the social order, every revolution in property relations, is the necessary consequence of the creation of new forces of production which no longer fit into the old property relations. Private property has not always existed. When, towards the end of the Middle Ages, there arose a new mode of production which could not be carried on under the then existing feudal and guild forms of property, this manufacture, which had outgrown the old property relations, created a new property form, private property. And for manufacture and the earliest stage of development of big industry, private property was the only possible property form; the social order based on it was the only possible social order.”

“The manufacturing worker almost always lives in the countryside and in a more or less patriarchal relation to his landlord or employer; the proletarian lives, for the most part, in the city and his relation to his employer is purely a cash relation. The manufacturing worker is torn out of his patriarchal relation by big industry, loses whatever property he still has, and in this way becomes a proletarian.”

“There is no such thing as absolute free speech; there are only absolute rights of private property. Speech is circumscribed by private property rights. You may deliver a disquisition in my virtual or actual living room only if I permit you to so do.”

“The abolition of private property has become not only possible but absolutely necessary. … The outcome can only be the victory of the proletariat.”

“In conditions of private property … “life-activity” stands in the service of property instead of property standing the service of free life-activity.”