""Giordano Bruno and Angelus Silesius"" is a book written by Rudolf Steiner, an Austrian philosopher, and esotericist. The book is a collection of lectures given by Steiner in 1915 and 1916, in which he discusses the lives and works of two influential thinkers of the Renaissance and Baroque periods: Giordano Bruno and Angelus Silesius.Giordano Bruno was an Italian philosopher, theologian, and astronomer who lived in the late 16th century. He was known...