For as soon as the division of labour comes into being, each man has a particular, exclusive sphere of activity, which is forced upon him and from which he cannot escape. He is a hunter, a fisherman, a shepherd, or a critical critic, and must remain so if he does not want to lose his means of livelihood; whereas in communist society, where nobody has one exclusive sphere of activity but each can become accomplished in any branch he wishes, society regulates the general production and thus makes it possible for me to do one thing today and another tomorrow, to hunt in the morning, fish in the afternoon, rear cattle in the evening, criticise after dinner, just as I have a mind, without ever becoming hunter, fisherman, shepherd or critic.
The limited intercourse and the weak ties between the individual towns, the lack of population and the narrow needs did not allow of a more advanced division of labour, and therefore every man who wished to become a master had to be proficient in the whole of his craft.
The first case presupposes that the individuals are united by some bond: family, tribe, the land itself, etc.; the second, that they are independent of one another and are only held together by exchange. In the first case, what is involved is chiefly an exchange between men and nature in which the labour of the former is exchanged for the products of the latter; in the second, it is predominantly an exchange of men among themselves.
This fixation of social activity, this consolidation of what we ourselves produce into a material power above us, growing out of our control, thwarting our expectations, bringing to naught our calculations, is one of the chief factors in historical development up till now. The social power, i.e., the multiplied productive force, which arises through the co-operation of different individuals as it is caused by the division of labour, appears to these individuals, since their co-operation is not voluntarily but has come about naturally, not as their own united power, but as an alien force existing outside them, of the origin and goal of which they are ignorant, which they thus are no longer able to control, which on the contrary passes through peculiar series of phases and stages independent of the will and action of man, nay even being the prime governor of these.
The form of intercourse determined by the existing productive forces at all previous historical stages, and in its turn determining these, is civil society. The latter, as is clear from what we have said above, has as its premise and basis the simple family and the multiple, called the tribe … civil society is the true focus and theatre of all history …
All quotes from:
Karl Marx/Frederick Engels
The German Ideology. Critique of Modern German Philosophy According to its Representatives Feuerbach, B. Bauer and Stirner, and of the German Socialism According to Its Various Prophets;
in: Karl Marx/Frederick Engels. Works. April 1845-April 1847; Collected Works, Volume 5; London: Lawrence & Wishart, 1976