In all history, nothing is so surprising or so difficult to account for as the sudden rise of civilization in Greece. Much of what makes civilization had already existed for thousands of years in Egypt and in Mesopotamia, and had spread thence to neighbouring countries. But certain elements had been lacking until the Greeks supplied. What they achieved in art and literature is familiar to everybody, but what they did in the purely intellectual realm is even more exceptional. They invented mathematics and science and philosophy; they first wrote history as opposed to mere annals; they speculated freely about the nature of the world and ends of life, without being bound in the fetters of any inherited orthodoxy. What occurred was so astonishing that, until very recent times, men were content to gape and talk mystically about the Greek genius. It is possible, however, to understand the development of Greece in scientific terms, and it is well worth while to do so. ~ Page 3

The art of writing was invented in Egypt about the year 4000 B.C., and in Babylonia not much later. In each country writing began with pictures of the objects intended. These pictures quickly became conventionalized, so that words were represented by ideograms, as they still are in China. In the course of thousands of years, this cumbrous system developed into alphabetic writing. ~ Page 4