Possessing utility, commodities derive their exchangeable value from two sources: from their scarcity, and from the quantity of labour required to obtain them.

If a commodity were in no way useful, - in other words, if it could in no way contribute to our gratification, - it would be destitute of exchangeable value, however scarce it might be, or whatever quantity of labour might be necessary to procure it.

The last point for consideration is the supposed disposition of the people to interfere with the rights of property. So essential does it appear to me, to the cause of good government, that the rights of property should be held sacred, that I would agree to deprive those of the elective franchise against whom it could justly be alleged that they considered it their interest to invade them.

Money is neither a material to work upon nor a tool to work with.

The exchangeable value of all commodities rises as the difficulties of their production increase.

The factors left out of the Ricardian equation are falling wages and idle capacity.

It has therefore been justly observed that however honestly the coin of a country may conform to its standard, money made of gold and silver is still liable to fluctuations in value, not only to accidental, and temporary, but to permanent and natural variations, in the same manner as other commodities.