Natural science will in time incorporate into itself the science of man, just as the science of man will incorporate into itself natural science: there will be one science.
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.
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.
Art is always and everywhere the secret confession, and at the same time the immortal movement of its time.
Capitalist production, therefore, develops technology, and the combining together of various processes into a social whole, only by sapping the original sources of all wealth – the soil and the labourer.
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.
Capital is reckless of the health or length of life of the laborer, unless under compulsion from society.
Society does not consist of individuals but expresses the sum of interrelations, the relations within which these individuals stand.
In bourgeois society capital is independent and has individuality, while the living person is dependent and has no individuality.
In a higher phase of communist society… only then can the narrow horizon of bourgeois right be fully left behind and society inscribe on its banners: from each according to his ability, to each according to his needs.