"Gold, on the contrary, though of little use compared with air or water, will exchange for a great quantity of other goods"

This quote by David Ricardo is referring to the value of gold in comparison to other products. He is stating that gold, although it is not as helpful as air or water, it can be exchanged for a large quantity of other items. This is since gold has a high worth and is seen as an important commodity. Gold is often used as a form of currency and is viewed as a sign of wealth and power. Gold is likewise seen as a safe investment, as its worth does not vary as much as other products. This quote is highlighting the value of gold and how it can be exchanged for a large quantity of other goods. This is why gold is seen as a valuable commodity and is typically utilized as a type of currency.