If the fifteenth century Turks had not been tolerant...

Prof. Justin McCarthy, "The Ethnic Cleansing of Ottoman Muslims, 1821-1922," The Darwin Press, New Jersey, 2nd Printing, 1996, p. 13:

"...expelling Turks and other Muslims was a principle that was to be followed by Bulgarians, Russians, and Armenians. It was the misfortune of the Muslim communities of the Balkans, Anatolia, and the Caucasus that they lay in the path of the new nationalisms. .. Their sufferings were ironic, because, had the Turks in their days of power been nationalists of the Greek sort, it would have been the Christians who were driven out, leaving lands that were purely Muslim Turkish. Instead, the Ottomans suffered the Christians to remain. They had often treated the Christians well, often poorly, but they had allowed them to exist and to keep their languages, traditions, and religions. They were right to do so, but if the fifteenth century Turks had not been tolerant, nineteenth-century Turks might have survived in their homes."