According to a U.S. court ruling, intelligent design (ID) theory is religious in nature, not scientific, and must not be taught in schools. In opposition, Fuller argues for a closer rapport between science and religion. Here it is emphasized that any allegedly scientific conclusion from design in nature to the existence of God is a hypothesis subject to the same quality norms as empirical hypotheses in general. By quotations from his Iter Lapponicum, Linnaeus is summoned in support of a strictly immanent conception of science, against Fuller's suggestion that Linnaeus' personal piety could be a reason for considering ID scientific.