If you, however, separate reason and faith so that it's purely a rationalistic scheme, it will end in violence. If a pure faith scheme - sometimes called the fundamentalist scheme in modern parlance - you'll end in violence too.

There is the enormous corpus of Islamic law that is very rich. However, law is one rational exercise of reason. Philosophy is very different. Philosophy wants to try to understand everything. It is a better dialogue partner with faith than law.

He [God] made us free, and He respects that. It is two different spheres of causality. Interdependent, though. It is not two boxes looking at one another without any kind of direct connections. There are very direct connections. That's why the question of "how are we free if God is omnipotent?" is a real, constant question. Ultimately, God is all powerful, and yet we are free.

Religion doesn't start with a set of laws or rules and it doesn't start with a set of ideas. It starts with an encounter, with the living God and in our case, Christ risen from the dead. In that encounter you meet someone you can trust. That's faith: trust in truth.

That question in marriage is mutual submission, really - the next verse goes on: "husbands love your wife as Christ loves the Church."

God's is the causality at the level of our being, and therefore the roots of our freedom. Ours in causality is determinative of what kind of being we're going to be through our free choices, what kind of action we are going to do through our decisions.

If you're going to say you're Catholic, you inform your conscience so that you're activities will conform to what God is telling us through the Church. If God is telling you something outside of that, well, the Church will look at that and say: we think it is true or we don't think it is true. The Church might say: that might be true for you but it has no public normative value.