Dialogue of Cultures

Excerpts from the lecture of The Holy Father
Aula Magna of the University of Regensburg
Tuesday, 12 September 2006

I was reminded of all this recently, when I read the edition by Professor Theodore Khoury (Münster) of part of the dialogue carried on – perhaps in 1391 in the winter barracks near Ankara – by the erudite Byzantine emperor Manuel II Paleologus and an educated Persian on the subject of Christianity and Islam, and the truth of both. It was presumably the emperor himself who set down this dialogue, during the siege of Constantinople between 1394 and 1402; and this would explain why his arguments are given in greater detail than those of his Persian interlocutor. The dialogue ranges widely over the structures of faith contained in the Bible and in the Qur’an, and deals especially with the image of God and of man, while necessarily returning repeatedly to the relationship between – as they were called – three “Laws” or “rules of life”: the Old Testament, the New Testament and the Qur’an. It is not my intention to discuss this question in the present lecture; here I would like to discuss only one point – itself rather marginal to the dialogue as a whole – which, in the context of the issue of “faith and reason”, I found interesting and which can serve as the starting-point for my reflections on this issue…

In the seventh conversation edited by Professor Khoury, the emperor touches on the theme of the holy war. The emperor must have known that surah 2, 256 reads: “There is no compulsion in religion”. According to some of the experts, this is probably one of the suras of the early period, when Mohammed was still powerless and under threat. But naturally the emperor also knew the instructions, developed later and recorded in the Qur’an, concerning holy war. Without descending to details, such as the difference in treatment accorded to those who have the “Book” and the “infidels”, he addresses his interlocutor with a startling brusqueness, a brusqueness that we find unacceptable, on the central question about the relationship between religion and violence in general, saying: “Show me just what Mohammed brought that was new, and there you will find things only evil and inhuman, such as his command to spread by the sword the faith he preached.” The emperor, after having expressed himself so forcefully, goes on to explain in detail the reasons why spreading the faith through violence is something unreasonable. Violence is incompatible with the nature of God and the nature of the soul. “God”, he says, “is not pleased by blood – and not acting reasonably is contrary to God’s nature. Faith is born of the soul, not the body. Whoever would lead someone to faith needs the ability to speak well and to reason properly, without violence and threats… To convince a reasonable soul, one does not need a strong arm, or weapons of any kind, or any other means of threatening a person with death…”.
The decisive statement in this argument against violent conversion is this: not to act in accordance with reason is contrary to God’s nature. The editor, Theodore Khoury, observes: For the emperor, as a Byzantine shaped by Greek philosophy, this statement is self-evident. But for Muslim teaching, God is absolutely transcendent. His will is not bound up with any of our categories, even that of rationality. Here Khoury quotes a work of the noted French Islamist R. Arnaldez, who points out that Ibn Hazm went so far as to state that God is not bound even by his own word, and that nothing would oblige him to reveal the truth to us. Were it God’s will, we would even have to practise idolatry…

Dehellenization first emerges in connection with the postulates of the Reformation in the sixteenth century. Looking at the tradition of scholastic theology, the Reformers thought they were confronted with a faith system totally conditioned by philosophy, that is to say an articulation of the faith based on an alien system of thought. As a result, faith no longer appeared as a living historical Word but as one element of an overarching philosophical system. The principle of sola scriptura, on the other hand, sought faith in its pure, primordial form, as originally found in the biblical Word. Metaphysics appeared as a premise derived from another source, from which faith had to be liberated in order to become once more fully itself. When Kant stated that he needed to set thinking aside in order to make room for faith, he carried this programme forward with a radicalism that the Reformers could never have foreseen. He thus anchored faith exclusively in practical reason, denying it access to reality as a whole…

The liberal theology of the nineteenth and twentieth centuries ushered in a second stage in the process of dehellenization, with Adolf von Harnack as its outstanding representative. When I was a student, and in the early years of my teaching, this programme was highly influential in Catholic theology too. It took as its point of departure Pascal’s distinction between the God of the philosophers and the God of Abraham, Isaac and Jacob. In my inaugural lecture at Bonn in 1959, I tried to address the issue, and I do not intend to repeat here what I said on that occasion, but I would like to describe at least briefly what was new about this second stage of dehellenization. Harnack’s central idea was to return simply to the man Jesus and to his simple message, underneath the accretions of theology and indeed of hellenization: this simple message was seen as the culmination of the religious development of humanity. Jesus was said to have put an end to worship in favour of morality. In the end he was presented as the father of a humanitarian moral message. Fundamentally, Harnack’s goal was to bring Christianity back into harmony with modern reason, liberating it, that is to say, from seemingly philosophical and theological elements, such as faith in Christ’s divinity and the triune God. In this sense, historical-critical exegesis of the New Testament, as he saw it, restored to theology its place within the university: theology, for Harnack, is something essentially historical and therefore strictly scientific. What it is able to say critically about Jesus is, so to speak, an expression of practical reason and consequently it can take its rightful place within the university. Behind this thinking lies the modern self-limitation of reason, classically expressed in Kant’s “Critiques”, but in the meantime further radicalized by the impact of the natural sciences. This modern concept of reason is based, to put it briefly, on a synthesis between Platonism (Cartesianism) and empiricism, a synthesis confirmed by the success of technology. On the one hand it presupposes the mathematical structure of matter, its intrinsic rationality, which makes it possible to understand how matter works and use it efficiently: this basic premise is, so to speak, the Platonic element in the modern understanding of nature. On the other hand, there is nature’s capacity to be exploited for our purposes, and here only the possibility of verification or falsification through experimentation can yield decisive certainty. The weight between the two poles can, depending on the circumstances, shift from one side to the other. As strongly positivistic a thinker as J. Monod has declared himself a convinced Platonist/Cartesian…

Only thus do we become capable of that genuine dialogue of cultures and religions so urgently needed today. In the Western world it is widely held that only positivistic reason and the forms of philosophy based on it are universally valid. Yet the world’s profoundly religious cultures see this exclusion of the divine from the universality of reason as an attack on their most profound convictions. A reason which is deaf to the divine and which relegates religion into the realm of subcultures is incapable of entering into the dialogue of cultures. At the same time, as I have attempted to show, modern scientific reason with its intrinsically Platonic element bears within itself a question which points beyond itself and beyond the possibilities of its methodology. Modern scientific reason quite simply has to accept the rational structure of matter and the correspondence between our spirit and the prevailing rational structures of nature as a given, on which its methodology has to be based. Yet the question why this has to be so is a real question, and one which has to be remanded by the natural sciences to other modes and planes of thought – to philosophy and theology. For philosophy and, albeit in a different way, for theology, listening to the great experiences and insights of the religious traditions of humanity, and those of the Christian faith in particular, is a source of knowledge, and to ignore it would be an unacceptable restriction of our listening and responding. Here I am reminded of something Socrates said to Phaedo. In their earlier conversations, many false philosophical opinions had been raised, and so Socrates says: “It would be easily understandable if someone became so annoyed at all these false notions that for the rest of his life he despised and mocked all talk about being – but in this way he would be deprived of the truth of existence and would suffer a great loss”.The West has long been endangered by this aversion to the questions which underlie its rationality, and can only suffer great harm thereby. The courage to engage the whole breadth of reason, and not the denial of its grandeur – this is the programme with which a theology grounded in Biblical faith enters into the debates of our time. “Not to act reasonably, not to act with logos, is contrary to the nature of God”, said Manuel II, according to his Christian understanding of God, in response to his Persian interlocutor. It is to this great logos, to this breadth of reason, that we invite our partners in the dialogue of cultures. To rediscover it constantly is the great task of the university.