[No Title Available]

Abstract

It is not an easy task to recall the life of someone who was a friend and with whom one shared professional activities during 26 years. I am afraid to forget to relate many important events, impressed as I am by the personality of David Klein. To characterize David Klein is quite an enterprise which covers numerous activities and which scope forms a field in many domains. David Klein deceased at 85 years in December 1993. His youth and adolescence were marked by many crucial events. His parents were killed in a concentration camp by the Germans. Before entering medicine he was tempted at first by history, philosophy and subjects related to Jewish culture. He started his medical studies in Germany, in Freiburg im Brisgau and ended them in Switzerland, in Basel.