Utility then is not the measure of exchangeable value, although it is absolutely essential to it.
David RicardoThe opinions that the price of commodities depends solely on the proportion of supply and demand, or demand to supply, has become almost an axiom in political economy, and has been the source of much error in that science.
David RicardoWhether a bank lent one million, ten million, or a hundred millions, they would not permanently alter the market rate of interest; they would alter only the value of the money they issued.
David Ricardo