The scientific work of Albert Einstein -- Planck's discovery and the philosophical problems of atomic theory -- Wolfgang Pauli's philosophical outlook -- The notion of a "Closed theory" in modern science -- Festival oration for the 800th anniversary celebrations of the city of Munich (1958) -- Science and technology in contemporary politics -- Abstraction in modern scince -- Current tasks and problems in the promotion of scientific research in Germany -- Natural law and the structure of matter -- Goethe's view of nature and the world of science and technology -- The tendency to abstraction in modern art and science -- Changes of thought pattern in the progress of science -- The meaning of beauty in the exact sciences -- The end of physics? -- Science in the contemporary University -- Scientific and religious truth