Karl Marx

"Proletariat and bourgeoisie face each other as equals."

"The task of mankind is to become more human."

"In a slave society, the master is equally enslaved."

"Production is the only answer to poverty."

"The aim of all technological progress is the liberation of mankind from toil."

"All social rules and all relations between individuals are erased by capitalism."

"Time is the space in which all things happen."

"The development of a person is the highest form of wealth."

"The history of all hitherto existing society is the history of class struggles."

"Workers of the world, unite; you have nothing to lose but your chains."

"Religion is the opium of the people."

"The ruling ideas of each age have ever been the ideas of its ruling class."

"Capital is dead labour, that, vampire-like, only lives by sucking living labour."

"In a higher phase of communist society, after the enslaving subordination of individuals under the division of labor has disappeared."

"The more the worker produces, the less he has to consume."

"Communism is not a state of affairs which is to be established, an ideal to which reality will have to adjust itself."

"Man makes his own history, but he does not make it under circumstances of his own choosing."

"The point is not just to interpret the world, but to change it."

"Society as a whole is more and more splitting up into two great hostile camps."

"The worker becomes all the poorer the more wealth he produces."

"A spectre is haunting Europe—the spectre of communism."

"The first requisite for the happiness of the people is the abolition of religion."

"Mankind always sets itself only such tasks as it can solve."

"All that is solid melts into air, all that is holy is profaned."

"The bourgeoisie has created a world after its own image."

"Education is the most powerful weapon which you can use to change the world."

"From each according to his ability, to each according to his needs."

"The philosophers have only interpreted the world in various ways; the point is to change it."

"It is not consciousness that determines life, but life that determines consciousness."

"In the end, everything comes down to the labor of the worker."