The concepts which are touched upon in the present paper are as follows:

The beginning of real familiarity of the French with Iran through itineraries of famous explorers of the 17th century and other works written about the
East, Iran and Islam; The focus of the writers and philosophers of Age of
Enlightenment Iranian culture/civilization and distribution of this culture to Europe; the influence of the great scholars of Persian Literature on the famous writers of this age; their special attention to Voltaire and Sa'adi; Voltaire using Sa'adi's techniques of eloquence and punctuality; mixing imagination with reality, and prose with poetry; using historical characters; distribution of Sa' adi' s thoughts such as kindness, cheerfulness, religious remissness, humanism, criticicm of the real world and searching for the desired one; other relationships between Sa'adi and Voltaire, etc.