""First That Which Is Natural"" is a philosophical treatise written by Alvin Boyd Kuhn. The book explores the concept of natural law and how it relates to human existence and morality. Kuhn argues that natural law is the foundation of all ethics and that it is inherent in the universe itself. He examines the works of various philosophers and theologians, including Plato, Aristotle, and St. Augustine, to support his argument. Kuhn also delves into...