John 14:6 seems to claim it, wouldn't you say? That is absolute nonsense. Go away and read Duns Scotus, then come back and say whether you still think that's true. There is no innate contradiction between "thinking" and "believing doctrinal truth", and it is not true that thought requires fundamental doubt. Even Descartes didn't think that! Finally, "reason" and "religion" are not inconsistent. They are not even the same kind of category. "Reason" is a way of thinking; "religion" is a sociological phenomenon. There is no reason why the latter cannot incorporate the former. Because they didn't have such laws at that time, and it's a myth. Do you have a serious question?