[Recollections of Carl Friedrich von Weizsäcker]

Reminiscences and a diary of the author allow a report on meetings, conversations, experiences and joint undertakings with Carl Friedrich von Weizsäcker during five decades. They began in the winter of 1948/49 in Göttingen in the Max Planck Institute for Physics where Werner Heisenberg was the director and Weizsäcker head of the Theory Division and where the author was graduate and post-graduate student and later group and division leader. In the 1960s a close cooperation with Weizsäcker resulted from common membership in Working Committee and Board of the Federation of German Scientists (VDW). As Science Attaché at the Embassy in Washington from 1971 to 1974 the author prepared for Weizsäcker the programme of his visits to the U.S. From 1974 to 1977 he cooperated closely with Weizsäcker, preparing the sessions of the Advisory Committee to the Federal Minister of Research and Technology of which Weizsäcker was Chair. Also in later years there were illuminating discussions and correspondences.