Science is a journey of exploration, while religion is defined and confined. Science is open ended, where religion is closed and contained. Science reveals "god", where religion defines god!
Is this true? It depends on what avenue of science one is talking about. The natural sciences not only reveal our understanding of the natural world, but does it or can it reveal anything about the "moral world"? If Kant is right that categories exist in our mind, then can it be "proven" by neurobiological investigation? But, is the mind the same as the brain? How we construct our realities are unique, in that we are individuals, who not only have unique experiences, but we understand those same experiences differently! How is that?
C.S.Lewis became a Christian because he believed that all men were created with a sense of justice. He wrote a book about this in "Mere Christianity".
Kant believed that we should act in a way that we would want to be universal. It was his way of understanding the "Golden Rule". How are we to act in a world that does not function on the "Golden Rule", but on the principles of business models? Can the "world' function on "trust", when the world has different understandings of what is right, or good? How are we to bring about a universal understanding of what is right without undermining diversity?
Science does not tell us what is right, but what is. How do we put "what is" in a framework of "what is right"? Is there a universal framework?
I think the danger of separating the two realms, is disconnnecting the "ethical" from the "real". What is real to a human being is their personal reality, which are created by many variables. The "Golden Rule" would mean that we affirm their "reality", which is not a universal. What about "mental illness"? How do we affirm that reality without helping them out of that reality? And who is to gauge what is "normal behavior"? Many eccentrics have been geniuses, as history revealed later, just as many moral or religious reformers had impact in history, but at the time were ostracized. How are we to gauge and make our judgments?
Religion does not like to explore the world, but define the world. I find that this limits man's creative spirit. Creativity can not be boxed, defined, or manipulated, but it must be expressed. Each person is a creative spirit that needs to be freed to experience life, and express their giftedness in their own unique way.