Roger Bacon's Letter : Kessinger Publishing : 9781169228016 : 1169228011 : 10 Sep 2010 : ""Roger Bacon's Letter: Concerning The Marvelous Power Of Art And Nature And The Nullity Of Magic"" is a book that explores the power of natural science and the limitations of magic. Written by Roger Bacon, a 13th-century English philosopher and Franciscan friar, the book is a letter that he wrote to Pope Clement IV in which he discusses the wonders of nature and the power of human knowledge to harness its potential. Bacon argues that the study of natural science can lead to great advancements in medicine, engineering, and agriculture, and that these advancements can improve the lives of people everywhere. He also argues against the use of magic, which he believes is a false and dangerous practice that can lead to deception and harm. Overall, ""Roger Bacon's Letter"" is a fascinating exploration of the power of science and the dangers of superstition, written by one of the most influential thinkers