"Everything predicted by the enemies of banks, in the beginning, is now coming to pass. We are to be ruined now by the deluge of bank paper. It is cruel that such revolutions in private fortunes should be at the mercy of avaricious adventurers, who, instead of employing their capital, if any they have, in manufactures, commerce, and other useful pursuits, make it an instrument to burden all the interchanges of property with their swindling profits, profits which are the price of no useful industry of theirs."
--Thomas Jefferson letter to Thomas Cooper, 1814.
Are we standing at the edge of a Great Inflation (like Weimer Germany), a second Republican Great Depression, or a return to the middle class prosperity of the Roosevelt/Eisenhower New Deal era? Until Americans understand the difference between "money" and "debt," odds are its going to be one of the first two, at least over the next few years.
Money
"Money" is a convenient replacement for barter in an economy. Instead of my giving you five pounds of carrots, so you wash my car, then you trade the carrots for a new shirt, and the clothing store then trades the carrots to a trucker that brings them their inventory, we all just agree to use a ten-dollar bill. Because a nation's money supply represents that nation's "wealth" - the sum total of goods, services, and resources available in an economy/nation - it needs to have a fixed value relative to the number/amount of goods, services, and resources within the nation.
As an economy grows - more factories, more goods, more services - the money supply grows so one dollar always represents the same number of carrots. (And with a fractional reserve banking system like we have, that growth is created mostly by banks lending money and creating it out of thin air in the process.)
http://www.commondreams.org/view/2009/04/13