This book provides a comprehensive overview of the life and works of the ancient Greek philosopher Posidonius. It examines his major philosophical contributions, including his theories on the nature of the universe, his views on the soul, and his ethical and political
From Wikipedia
Posidonius was a Greek politician, astronomer, astrologer, geographer, historian, mathematician, and teacher native to Apamea, Syria. He was considered the most learned man of his time and, possibly, of the entire Stoic school.