Pope Benedict said
"I recall the figure of St. Thomas More, the great English scholar and statesman, who is admired by believers and non-believers alike for the integrity with which he followed his conscience, even at the cost of displeasing the sovereign whose 'good servant' he was, because he chose to serve God first. The dilemma which faced More in those difficult times, the perennial question of the relationship between what is owed to Caesar and what is owed to God, allows me the opportunity to reflect with you briefly on the proper place of religious belief within the political process".
"The fundamental questions at stake in Thomas More's trial continue to present themselves in ever-changing terms as new social conditions emerge. Each generation, as it seeks to advance the common good, must ask anew: what are the requirements that governments may reasonably impose upon citizens, and how far do they extend? By appeal to what authority can moral dilemmas be resolved? These questions take us directly to the ethical foundations of civil discourse. If the moral principles underpinning the democratic process are themselves determined by nothing more solid than social consensus, then the fragility of the process becomes all too evident - herein lies the real challenge for democracy".
The Holy Father continued his remarks: "The inadequacy of pragmatic, short-term solutions to complex social and ethical problems has been illustrated all too clearly by the recent global financial crisis. There is widespread agreement that the lack of a solid ethical foundation for economic activity has contributed to the grave difficulties now being experienced by millions of people throughout the world. Just as 'every economic decision has a moral consequence', so too in the political field, the ethical dimension of policy has far-reaching consequences that no government can afford to ignore".
"The central question at issue, then, is this: where is the ethical foundation for political choices to be found? The Catholic tradition maintains that the objective norms governing right action are accessible to reason, prescinding from the content of revelation. According to this understanding, the role of religion in political debate is ... to help purify and shed light upon the application of reason to the discovery of objective moral principles".
Without the "corrective" role of religion, the Pope explained, "reason too can fall prey to distortions, as when it is manipulated by ideology, or applied in a partial way that fails to take full account of the dignity of the human person. Such misuse of reason, after all, was what gave rise to the slave trade in the first place and to many other social evils, not least the totalitarian ideologies of the twentieth century. This is why I would suggest that the world of reason and the world of faith - the world of secular rationality and the world of religious belief - need one another and should not be afraid to enter into a profound and ongoing dialogue, for the good of our civilisation.
"Religion, in other words, is not a problem for legislators to solve, but a vital contributor to the national conversation. In this light, I cannot but voice my concern at the increasing marginalisation of religion, particularly of Christianity, that is taking place in some quarters, even in nations which place a great emphasis on tolerance. There are those who would advocate that the voice of religion be silenced, or at least relegated to the purely private sphere. There are those who argue that the public celebration of festivals such as Christmas should be discouraged, in the questionable belief that it might somehow offend those of other religions or none. And there are those who argue - paradoxically with the intention of eliminating discrimination - that Christians in public roles should be required at times to act against their conscience. These are worrying signs of a failure to appreciate not only the rights of believers to freedom of conscience and freedom of religion, but also the legitimate role of religion in the public square. I would invite all of you, therefore, within your respective spheres of influence, to seek ways of promoting and encouraging dialogue between faith and reason at every level of national life".