Unlike traditional Christians, Mormons are philosophical materialists. They imagine a unified cosmos consisting only of matter, bounded by space and time, operating under natural law. Founder
Joseph Smith is quoted as saying, “There is no such thing as immaterial matter. All spirit is matter.” (
D&C 131:7). He set Mormons apart from philosophical dualists by arguing that there is no substance other than the material world, even if matter is invisible to mortals or not yet understood.
1 The Mormon cosmos is wholly natural and follows fixed laws; there is no supernatural. Without distinct natural and supernatural realms, it never made sense for Mormons to distinguish natural or scientific truth from spiritual truth. Within Mormonism, natural and spiritual truth collapse into a unified whole. Smith claimed, “Mormonism is truth; and every man who embraces it feels himself at liberty to embrace every truth” (
Times and Seasons, Feb. 1840, pp. 53–5), thus suggesting he viewed science as a branch of Mormonism, and vice versa.
2