P. P. Quimby's Theory of Man is a book written by Horatio W. Dresser that explores the ideas and teachings of Phineas Parkhurst Quimby, a 19th-century healer and philosopher. Quimby's theories on the nature of man and the mind-body connection were highly influential in the development of the New Thought movement. Dresser's book delves into Quimby's teachings on topics such as the power of thought, the role of belief in healing, and the nature of disease...