Letters of the Brethren of Purity and the Faithful Friends (Part III)

Unknown author

In this third part of the Epistles of the Brethren of Purity, the reader delves into the depths of rational and psychological philosophy, exploring the secrets of existence and principles of entities through the light of Pythagorean number theory.

Age rating: Ages 16 and up.

Text source: Hindawi Foundation

This book is still in the making. Reading and the PDF will appear here when it is out.