Were secular citizens to encounter their fellow citizens with the reservation that the latter, because of their religious mindset, are not to be taken seriously as modern contemporaries, they would revert to the level of a mere modus vivendi – and would thus relinquish the very basis of mutual recognition which is constitutive for shared citizenship. Secular citizens are expected not to exclude a fortiori that they may discover, even in religious utterances, semantic contents and covert personal intuitions that can be translated and introduced into a secular discourse.
So, if all is to go well both sides, each from its own viewpoint, must accept an interpretation of the relation between faith and knowledge that enables them to live together in a self-reflective manner.
more from Sign and Sight here.