(4) In common with all ancient peoples these Greek philosophers did not believe that the universe had unlimited space. On the contrary, they believed that it was limited and in the shape of an egg.
Table of Cosmologists. The Cosmologists are divided into two classes: (1) the earlier were monists—those who believe that the reality of the universe is a simple, undifferentiated unity; (2) the later were pluralists—those who believe that the reality of the universe consists of several elements equally real. They are enumerated as follows:—
The Monists
1. The Milesian school
Thales
Anaximander
Anaximenes
at Miletus.
2. Xenophanes at Colophon and Elea.
3. The Eleatic school