"The bourgeoisie has torn away from the family its sentimental veil, and has reduced the family relation to a mere money relation."

"In a communist society, the only way in which the family can remain in existence is by ceasing to be the economic unit of society."

"The abolition of private property is therefore by no means the result of an arbitrary act of will, but the necessary result of the development of the productive forces."

"The ideas of the ruling class are in every epoch the ruling ideas, i.e. the class which is the ruling material force of society, is at the same time its ruling intellectual force."

"The first requisite of all history is the production of the means to satisfy these needs, the production of material life itself."