"The bourgeoisie cannot exist without constantly revolutionising the instruments of production, and thereby the relations of production, and with them the whole relations of society."

"Social progress can be measured exactly by the social position of the fair sex (the ugly ones included)."

"The State is the form in which the individuals of a ruling class assert their common interests, and in which the whole civil society of an epoch is epitomized."

"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."

"Capital is dead labour, which, vampire-like, only lives by sucking living labour, and lives the more, the more labour it sucks."