"Community of women is a condition which belongs entirely to bourgeois society and which today finds its complete expression in prostitution. But prostitution is based on private property and falls with it. Thus, communist society, instead of introducing community of women, in fact abolishes it."

"What will be the influence of communist society on the family? It will transform the relations between the sexes into a purely private matter which concerns only the persons involved and into which society has no occasion to intervene. It can do this since it does away with private property and educates children on a communal basis, and in this way removes the two bases of traditional marriage – the dependence rooted in private property, of the women on the man, and of the children on the parents."

"The general co-operation of all members of society for the purpose of planned exploitation of the forces of production, the expansion of production to the point where it will satisfy the needs of all, the abolition of a situation in which the needs of some are satisfied at the expense of the needs of others, the complete liquidation of classes and their conflicts, the rounded development of the capacities of all members of society through the elimination of the present division of labor, through industrial education, through engaging in varying activities, through the participation by all in the enjoyments produced by all, through the combination of city and country – these are the main consequences of the abolition of private property."

"Education will enable young people quickly to familiarize themselves with the whole system of production and to pass from one branch of production to another in response to the needs of society or their own inclinations. It will, therefore, free them from the one-sided character which the present-day division of labor impresses upon every individual. Communist society will, in this way, make it possible for its members to put their comprehensively developed faculties to full use. But, when this happens, classes will necessarily disappear. It follows that society organized on a communist basis is incompatible with the existence of classes on the one hand, and that the very building of such a society provides the means of abolishing class differences on the other."

"Industry controlled by society as a whole, and operated according to a plan, presupposes well-rounded human beings, their faculties developed in balanced fashion, able to see the system of production in its entirety."

"Big industry, freed from the pressure of private property, will undergo such an expansion that what we now see will seem as petty in comparison as manufacture seems when put beside the big industry of our own day. This development of industry will make available to society a sufficient mass of products to satisfy the needs of everyone. The same will be true of agriculture, which also suffers from the pressure of private property and is held back by the division of privately owned land into small parcels. Here, existing improvements and scientific procedures will be put into practice, with a resulting leap forward which will assure to society all the products it needs. In this way, such an abundance of goods will be able to satisfy the needs of all its members."

"What will be the consequences of the ultimate disappearance of private property? Society will take all forces of production and means of commerce, as well as the exchange and distribution of products, out of the hands of private capitalists and will manage them in accordance with a plan based on the availability of resources and the needs of the whole society. In this way, most important of all, the evil consequences which are now associated with the conduct of big industry will be abolished. There will be no more crises; the expanded production, which for the present order of society is and hence a prevailing cause of misery, will then be insufficient and in need of being expanded much further. Instead of generating misery, overproduction will reach beyond the elementary requirements of society to assure the satisfaction of the needs of all; it will create new needs and, at the same time, the means of satisfying them. It will become the condition of, and the stimulus to, new progress, which will no longer throw the whole social order into confusion, as progress has always done in the past."

"It is a universal revolution and will, accordingly, have a universal range."

"By creating the world market, big industry has already brought all the peoples of the Earth, and especially the civilized peoples, into such close relation with one another that none is independent of what happens to the others. Further, it has co-ordinated the social development of the civilized countries to such an extent that, in all of them, bourgeoisie and proletariat have become the decisive classes, and the struggle between them the great struggle of the day. It follows that the communist revolution will not merely be a national phenomenon but must take place simultaneously in all civilized countries."

"When all capital, all production, all exchange have been brought together in the hands of the nation, private property will disappear of its own accord, money will become superfluous, and production will so expand and man so change that society will be able to slough off whatever of its old economic habits may remain."

"Once the first radical attack on private property has been launched, the proletariat will find itself forced to go ever further, to concentrate increasingly in the hands of the state all capital, all agriculture, all transport, all trade. All the foregoing measures are directed to this end; and they will become practicable and feasible, capable of producing their centralizing effects to precisely the degree that the proletariat, through its labor, multiplies the country's productive forces."

"Democracy would be wholly valueless to the proletariat if it were not immediately used as a means for putting through measures directed against private property and ensuring the livelihood of the proletariat."

"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."

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

"So long as it is not possible to produce so much that there is enough for all, with more left over for expanding the and extending the forces of production – so long as this is not possible, there must always be a ruling class directing the use of society's productive forces, and a poor, oppressed class. How these classes are constituted depends on the stage of development."

"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 abolition of private property is, doubtless, the shortest and most significant way to characterize the revolution in the whole social order which has been made necessary by the development of industry – and for this reason it is rightly advanced by communists as their main demand."