""Theories About The Truth Of Things"" is a book written by William E. Mann and published in 1919. The book explores various theories about the nature of truth and reality, including those put forth by philosophers such as Plato, Aristotle, and Descartes. Mann delves into the concepts of truth, knowledge, and belief, and examines how these ideas have been understood and debated throughout history. He also considers the role of language and perception...