Gustav Fechner
Fechner, along with Wilhelm Wundt and Hermann von Helmholtz, is recognized as one of the founders of modern experimental psychology. His clearest contribution was the demonstration that because the mind was susceptible to measurement and mathematical treatment, psychology had the potential to become a quantified science. Theorists such as Immanuel Kant had long stated that this was impossible, and that therefore, a science of psychology was also impossible.
Written works of L. Ron Hubbard
Lafayette Ronald Hubbard (March 13, 1911 – January 24, 1986), better known as L. Ron Hubbard, was an American pulp fiction author. He wrote in a wide variety of genres, including science fiction, fantasy, adventure fiction, aviation, travel, mystery, western and romance. He is perhaps best known for his self-help book, the #1 New York Times bestseller Dianetics: The Modern Science of Mental Health (first published in 1950), and as the founder of the Church of Scientology.