Exchange value forms the substance of money, and exchange value is wealth.

Although gold and silver are not by nature money, money is by nature gold and silver.

The circulation of capital realizes value , while living labour creates value.

An increase in the productivity of labour means nothing more than that the same capital creates the same value with less labour, or that less labour creates the same product with more capital.

Money degrades all the gods of man and converts them into commodities.

Under the ideal measure of values there lurks the hard cash.