INTRODUCTION
Sources
A History of Philosophy, Frank Thilly, 1914, 30 revised edition Ledger Wood, 1957, has the virtues of brevity and impartiality [attempt to understand each system in its integrity; to formulate the tacit and implicit basic assumptions of each system: allowing the primary criticism to be the criticisms made by other contemporary and later philosophers. Often, the tacit assumptions are brought out by later philosophers of the same movement or tradition]. This history is based in Thilly''s work, re-thought and adapted to my understanding