The answer is William James. He was an American philosopher and psychologist who was also taught as a physician. He is also known as the Father of American psychology. His book (Varieties) includes his edited Gifford Lectures on natural theology, which were delivered at the University of Edinburgh in Scotland in 1901 and 1902. The discourses concerned the nature of religion and the neglect of science in the academic study of religion. Shortly after its publication, Varieties go into the Western canon of psychology and philosophy and has remained in reproduction for over a century.
