Non-overlapping magisteria

Non-overlapping magisteria (NOMA) is the view that was advocated by Stephen Jay Gould that science and religion each represent different areas of inquiry, fact vs. values, so there is a difference between the "nets" over which they have "a legitimate magisterium, or domain of teaching authority," and the two domains do not overlap. He suggests, with examples, that "NOMA enjoys strong and fully explicit support, even from the primary cultural stereotypes of hard-line traditionalism" and that it is "a sound position of general consensus, established by long struggle among people of goodwill in both magisteria." Some have criticized the idea or suggested limitations to it, and there continues to be disagreement over where the boundaries between the two magisteria should be.

In a 1997 essay "Non-Overlapping Magisteria" for Natural History magazine, and later in his book Rocks of Ages (1999), Gould put forward what he described as "a blessedly simple and entirely conventional resolution to . . . the supposed conflict between science and religion.", from his puzzlement over the need and reception of the 1996 address of Pope John Paul II to the Pontifical Academy of Sciences "Truth Cannot Contradict Truth". He draws the term magisterium from Pope Pius XII's encyclical, Humani generis (1950), and defines it as "a domain where one form of teaching holds the appropriate tools for meaningful discourse and resolution", and describes the NOMA principle as "Science tries to document the factual character of the natural world, and to develop theories that coordinate and explain these facts. Religion, on the other hand, operates in the equally important, but utterly different, realm of human purposes, meanings, and values—subjects that the factual domain of science might illuminate, but can never resolve." "These two magisteria do not overlap, nor do they encompass all inquiry (consider, for example, the magisterium of art and the meaning of beauty)."

Gould emphasized the legitimacy of each field of endeavor only within its appropriate area of inquiry: "NOMA also cuts both ways. If religion can no longer dictate the nature of factual conclusions residing properly within the magisterium of science, then scientists cannot claim higher insight into moral truth from any superior knowledge of the world's empirical constitution." In the chapter "NOMA Defined and Defended" Gould gave examples of the types of questions appropriate to each area of inquiry, on the topic of "our relationship with other living creatures": "Do humans look so much like apes because we share a recent common ancestor or because creation followed a linear order, with apes representing the step just below us?" represents an inquiry concerning fact, while "Under what conditions (if ever) do we have a right to drive other species to extinction by elimination of their habitats? Do we violate any moral codes when we use genetic technology to place a gene from one creature into the genome of another species?" represent questions in the domain of values. He went on to present "an outline of historical reasons for the existence of conflict, where none should exist;"

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