If you have a billion Muslims, 900 million of them were not brought into Islam by any kind of invasion, but most of them through the Sufis, because human beings are such that they are affected by people of spiritual character. Certainly when they display nobility and hospitality and gentility and love and are not selfish or aggressive, and they are honest.
Seyyed Hossein Nasr300 years after the rise of Islam there were Zoroastrians in Iran. The Muslim armies never forced people to accept Islam. It was only within Arabia that God ordered the idolaters to have a choice of either embracing Islam or fight against Muslims, because He wanted to remove this terrible idolatry that exited there. But outside Arabia where Islam met Christians, Jews, Zoroastrians and Hindus, they were given a choice by and large. That's why many Christians and Jewish communities survived in the Muslim world, but gradually many of them embraced Islam for different reasons.
Seyyed Hossein NasrFrom it genesis twelve hundred years ago to today, Islamic philosophy (al-hikmah; al-falsafah) has been one of the major intellectual traditions within the Islamic world, and it has influenced and been influenced by many other intellectual perspectives, including Scholastic theology (kalam) and doctrinal Sufism (al-ma'rifah or al-tasawwuf al-'ilmi) and theoretical gnosis ('irfan-i nazari).
Seyyed Hossein NasrWhat does a lamp do? The lamp is like a horse that is running but stays put. But by virtue of being a lamp it illuminates the space around it. Therefore, the practice of purifying one's soul, of living virtuously, has tremendous impacts upon the ethics of the surrounding society.
Seyyed Hossein NasrMuhammad sets the model for being a good statesman. He also sets the model for being a good warrior, for chivalry, of nobility, of all the things which the Quran and Hadith [The recorded collections of the sayings and traditions of the Prophet] says of treating your enemy with dignity and kindness.
Seyyed Hossein Nasr