In reading an article that a friend sent to me I found this quote from President Kennedy:

I believe in a President whose religious views are his own private affair, neither imposed by him upon the nation or imposed by the nation upon him as a condition to holding that office.

With a slight change it adequately reflects my view on the proper role of religion in American society:

I believe in a citizen whose religious views are his own private affair, neither imposed by him upon the nation or imposed by the nation upon him as a condition of citizenship.