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

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

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

Capital is money, capital is commodities. By virtue of it being value, it has acquired the occult ability to add value to itself. It brings forth living offspring, or, at the least, lays golden eggs.

It might otherwise appear paradoxical that money can be replaced by worthless paper; but that the slightest alloying of its metallic content depreciates it.

The writer must earn money in order to be able to live and to write, but he must by no means live and write for the purpose of making money.