Dean Kenning

Chapter 3: The Metamorphosis of Commodities

Page 200

The process of exchange is … accomplished through two metamorphosis of opposite yet mutually complementary characters – the conversion of the commodity into money, and the re-conversion of the money into a commodity … the unity of the two acts: selling in order to buy … 
For the weaver, the whole process accomplishes nothing more than the exchange of the product of his labour for the product of someone else’s, nothing more than an exchange of products.
The process of exchange is therefore accomplished through the following changes of form:
Commodity – Money – Commodity
C – M – C