Mind-brain identity often seems intuitively implausible even to nonreligious people, because the conceptual schemes that we acquire from our cultures are inherently dualist. Languages from Hebrew to Greek to English have terms for mind and spirit that seem to designate nonphysical entities. Children learn from their parents to see their thoughts and feelings as intrinsically different from the states of their bodies. People's conscious experiences strongly suggest to them that their minds are making free choices independent of biological causes. The Brain Revolution requires a major conceptual shift to reclassify states of mind as neural.