The Quran explicitly opposes the killing of innocent people and the Prophet was always careful in doing that. If they had to fight a war, he was always on the side of peace as soon as it was possible to make peace because that's what the Quran says also.

Sufism has always had the function of purifying Islamic ethics and that fasting and tazkiya is like lighting a lamp.

There is no religion in the world where there is a possibility of spiritual development outside of the context of that religion. This is only a modern invention. For example, Christian mystics were also Christians. They also went to Church and followed Christian laws. Hindu mystics were practicing Hindus; they didn't kill cows and have steak. They follow the Hindu laws and so on and so forth down the line and Sufism is no exception.

The significance of the vast Islamic scientific tradition for Muslims and especially for young Muslims today is not only that it gives them a sense of pride in their own civilization because of the prestige that science fhas in the present day world. It is furthermore a testament to the way Islam was able to cultivate various sciences extensively without becoming alienated from the Islamic world view and without creating a science whose application would destroy the world of nature and the harmony that must exist between man and the natural environment.

Rumi is perhaps the greatest mystical poet who ever lived, one of the greatest poets of the Persian language. He was able to express practically all aspects of the spiritual life and our existential situation in the world today as human beings in beautiful Persian poetry.

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.

Islam, in contrast to Christianity and Buddhism, does not have monasticism; spiritual life, social life, they are all integrated and related together in one way or another. And the Prophet represents that in his life.