An interesting observation that those Orthodox Christians who reject natural law in any form might want to consider:
By rejecting Hellinization, or Greek Philosophy, fundamentalist Islam denies the validity of reason, and therefore also denies the existence of natural law. Reilly argues that without reason and natural law it is impossible to develop the sort of constitutional systems that are prevalent in the West. He further traces the problem back in history and explains that a divide arose in “9th century in Baghdad between those who wished to give primacy to reason and those who wished to give primacy to pure will and power. So you had, on one side, the first theological school in Islam that said, ‘God is rationality and justice,’ and the other side which said: ‘No, God is pure will and power. Rationality has nothing to do with Him and whatever He does is incomprehensible to us and He cannot be confined to what is thought to be reasonable or unreasonable.’”The latter view ultimately prevailed, as Reilly points that even today the majority theological school believes “that God is the first and only cause of everything and there cannot be secondary causes (such as natural law) because that would be a challenge to God’s omnipotence. So for God to be omnipotent, nothing else can be even so much as potent. Therefore, gravity does not make the rock fall; God does. Fire doesn’t burn cotton; God does.”
As a result there is a:
…rejection of reason in fundamentalist Islam leads to the belief that “the mind is incapable of knowing good and evil from moral philosophy because there is nothing to be known, because things have no nature and are therefore neither good nor evil in themselves, [it is only because] God says so.”
And the practical conclusion?
The Church cannot expect to have any meaningful dialogue with either the secularists or the fundamentalists until both have been re-Hellenized. “Come now, and let us reason together, saith the LORD,” but such an invitation can only be accepted by a man who would say “I desire only to know the truth, and to live as well as I can.”
You can read the rest here: The Re-Hellenization of Islam.