Wolfgang SchadProfessor Dr Wolfgang Schad (1935-2022) studied biology, chemistry, physics and education. He worked for many years as a Waldorf school teacher and as a lecturer at the Waldorf Teacher's College in Stuttgart. He was an Emeritus Professor at Institutefor Evolutionary Biology at the University of Witten-Herdecke, Germany, a position he held until his retirement in 2005. Read More Read Less