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.

There can be no real and effective 'freedom' in a society based on the power of money, in a society in which the masses of working people live in poverty and the handful of rich live like parasites.

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

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

The circulation of commodities is the original precondition of the circulation of money.