The human being is in the most literal sense a political animal, not merely a gregarious animal, but an animal which can individuate itself only in the midst of society. Karl Marx
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. Karl Marx
The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together. Karl Marx
The oppressed are allowed once every few years to decide which particular representatives of the oppressing class are to represent and repress them. Karl Marx
The product of mental labor - science - always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production. Karl Marx
We should not say that one man's hour is worth another man's hour, but rather that one man during an hour is worth just as much as another man during an hour. Time is everything, man is nothing: he is at the most time's carcass. Karl Marx