In "An Inquiry into the Nature and Causes of the Wealth of Nations" published in 1776, Adam Smith wrote:

"Nothing is more useful than water: but it will purchase scarcely anything... A diamond, on the contrary, has scarcely any use-value; but a very great quantity of other goods may frequently be had in exchange for it"

Explain the diamond-water paradox and find out in the literature how economists have later solved this paradox.