Ottoman Empire

Why was the Ottoman Empire Successful from the 14th to the 18th centuries?

I.  Balance of Power in the Ruling Class:  each province in the empire had a separate military, civil, and financial administrator who reported separately to the sultan.
 
II.  Tolerance of Different Religious Groups Under a Muslim-Majority Government:  each religious group (Jews and Christians) were allowed to live according to their own laws and police their own people as long as they paid the extra taxes put on their groups.
 
III.  Emphasis on Education:  As Muslims, the Ottomans supported religious schools run by the ulamas (Muslim religious leaders), which taught the Koran and math up to trigonometry.
 
IV.  Emphasis on Religious Law:  All Muslims in the empire, including the sultan, were viewed as equal under Islamic law, so social order was easy to maintain across many different cultures in the empire