""A Treatise Concerning Eternal and Immutable Immortality"" is a philosophical work written by Ralph Cudworth. The book delves into the concept of eternal and immutable immortality, exploring the nature of the soul and the possibility of its continued existence after death. Cudworth argues that the soul is a divine and immortal essence that transcends the physical body, and that its immortality is not subject to change or decay. He draws on a variety...