This book shows that the Ottoman Empire lasted over 600 years because of their tolerance and idealism that promoted freedom of religion and speech that was unseen in the world during the time. It's important to note that propagandists who do not like the Ottoman Empire and the author's views on certain small subjects dealing with the Ottoman Empire will likely give negative ratings, but these are understandable, since few historians have covered the topic of the Ottoman Empire, since it is the most under-researched empire in history.