George Clason

All of the resources supporting this large city were man-developed. All of its riches were man-made.

Babylon possessed just two natural resources—a fertile soil and water in the river.

In this way, we have proved that 8000 years ago, the Sumerites, who inhabited Babylonia, were living in walled cities. One can only conjecture for how many centuries previous such cities had existed. Their inhabitants were not mere barbarians living within protecting walls. They were an educated and enlightened people. So far as written history goes, they were the first engineers, the first astronomers, the first mathematicians, the first financiers and the first people to have a written language.