Page:Early Greek philosophy by John Burnet, 3rd edition, 1920.djvu/87

Rh it is perhaps more fruitful in ideas that were destined to hold their ground.

25. Anaximenes is one of the philosophers on whom Theophrastos wrote a special monograph; and this gives us an additional guarantee for the trustworthiness of the tradition. The following are the passages which contain the fullest account of the central feature of his system:

26. At first, this looks like a falling off from the more refined doctrine of Anaximander to a cruder view; but this is not really the case. On the contrary, the introduction of rarefaction and condensation into the theory is a notable