No and Yes

Published in 1891 by the founder of Christian Science, this concise treatise distills Eddy's radical philosophy into its essential arguments. The title itself announces her method: systematically dismantling material misconceptions ('No') to reveal spiritual truth ('Yes'). Eddy argues that disease, sin, and physical reality are illusions created by errant thought, and that genuine healing comes only through aligning consciousness with divine Love. She distinguishes Christian Science sharply from spiritualism and theosophy, insisting her system rests on biblical principles rather than occult speculation. For readers interested in American religious history, the origins of a major faith movement, or philosophical questions about the nature of reality, this brief work offers an accessible entry point to ideas that shaped a denomination and continue to influence discussions about mind, body, and the possibility of spiritual healing.