Milesian Physics
The history of Milesian views about the primary substance is chiefly remarkable for the way in which the awareness of the problems grew from one philosopher to the nextÉ Their actual theories strike a later age as childishÉ But the measure of their achievement is the advance they made in grasping the problems.  They rejected supernatural causation and appreciated that naturalistic explanations can and should be given for a wide range of phenomenaÉ  they took the first tentative steps toward an understanding of the problem of change.  (Lloyd)