In the great monotheistic religions of the world the existence of God is first and foremost a fact to be accepted in faith or a reality to surrender to. Faith in God and surrender to Him are considered to be so basic and fundamental that attempts to go further and to make God and His existence the object of speculation of a highly philosophical nature are sometimes either outright rejected or at least viewed with suspicion. In both Islam and Christianity examples of this tendency can be detected. In the former e.g. in most Protestant Churches with their emphasis on faith alone, and in the latter in the Ashcarite theological school in Sunni Islam.
And yet, in both these religions we find also very clear examples of a kind of philosophical speculation that does not stop short at God and His existence. On the contrary, this speculation sometimes takes even the form of drawing up rational arguments or proofs for His existence. As far as Islam is concerned both Ebn Sina and Molla Sadra are important, or perhaps even the most important representatives of this tendency. In Christianity the attempt to proof the existence of God is inextricably bound up with the name of Saint Anselm of Canterbury, the "Father of Scholasticism", as he is often called (1, p: 291). Scholasticism is that kind of philosophical and theological speculation that in the Middle Ages in Christian Europe was practised in the schools attached to cathedrals and monasteries, and later in the universities. Scholasticism rests on two pillars, auctoritas (authority) and ratio (reason). The authority is provided by the indisputable truths of the Christian faith, deriving from the Bible and handed down through the Church Fathers. The reason is the instrument used to analyse these truths and to bring them together into a coherent and comprehensive system (4, pp: 396-9).
What I would like to do in this article, is to raise the question what kind of argument or arguments Anselm of Canterbury and Molla Sadra have used to prove God"s existence and to compare these arguments in order to find out if a certain resemblance or analogy is to be detected. After all, these two men, each in his own right, have been very influential and they are still influential.
But before going into this matter, let me first give a very short biography of Anselm of Canterbury. I take it for granted that in view of the readership of this magazine, I am not expected to draw even a rudimentary sketch of Molla Sadra"s life.