In this, the second Memorial lecture in honour of Sheikh Zaki Badawi, Dr. Mustafa Ceric, Grand Mufti of Bosnia-Hercegovina, examines one of the most important issues facing Muslim communities in Europe today; how to participate actively and faithfully in modern European society. Dr. Ceric introduces the concept of a Muslim Social Contract theorizing on its value, philosophical and religious foundations, as well as wider implications for Muslims in Europe. It is in essence a theory of mutual obligations advocating positive engagement bu Muslims on a sociopolitical as well as intellectual level in wider European society.