Militarily, the great movements of resistance against colonial powers in the 18th and 19th century were almost all from Sufis: Imam Shamil in Caucasia, Amir Abd al Qadir in Algeria, The Barelvi family in the modern province of India, today which is Pakistan, and you can go down the line.
Seyyed Hossein NasrThere 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.
Seyyed Hossein NasrOnly man can stop being fully man. He can ascend above all degres of universal existence and by the same token fall below the level of the basest of creatures.
Seyyed Hossein NasrIf God did not love us, we could not love him. And Sufis are those who have realized this love.
Seyyed Hossein Nasr