Piero Morpurgo, www.morpurgo.wide.it in many essays including The harmony of nature and order of governments, Micrologus library 4, Sismel Florence 2000, explored handwritten sources that testify to the evolving science within shorts such as Frederick of Swabia and study centers as the Schola Medical Salernitana, and in the book production centers and universities medieval and modern dwelling on tangles between science, literature and iconography that attest to the vitality of between medieval studies Age and Modern. In particular sources on medieval intellectual world have dwelled on the contribution of the world and Hebrew from these investigations comes "The world exists only for the breath of children who go to school" - The anxiety of knowing and pride of the world to teach Hebrew , pp. 250, Editions Viella, Rome, 2008.