Know the ways. The ways of simple people indicated by Hildegald of Bingen

Maria Antonietta Crippa, Professor of History of Architecture at the Politecnico di Milano; Giovanna Rossi Sciumè, Professor of Sociology of Education at the Università Cattolica di Milano; Maurizio Italiano, Physician and Vice President of the Centro Studi  Sant’Ildegarda di Milano.