THE PHILOSOPHY OF MONEY - The Best Way to Share & Discover ...
Money is also called cash or currency. It is used for the exchange of things. In the old days, when people didn’t have money, they exchanged their things with each other by direct negotiation which is called "purchase and sale agreement".. For example: one brought a bag of rice to the market in exchange for a cow or one took a duck or a chicken to the market in exchange for rice or salt, etc.