Spencer makes no attempt to explain the historical, political, economic and spiritual circumstances of 7thcentury Arabia, without which it is impossible to understand the complexities of Muhammads life
सातवाहन इतिहासखंडात, सामाजिक न्याय आणि आर्थिक उन्नती ह्याविषयींचे हल्लीचे सुधारणावादी प्रगत विचार नव्हते.