Carl Friedrich von Weizsacker Professions : Physicist Born : June 28, 1912 Died : April 28, 2007 Browse All Authors Top 3 quotes by Carl Friedrich von Weizsacker Classical physics has been superseded by quantum theory: quantum theory is verified by experiments. Experiments must be described in terms of classical physics. Carl Friedrich von Weizsacker quantum physics science Democracy means decision by those concerned. Carl Friedrich von Weizsacker freedom decision mean Nature is earlier than man, but man is earlier than natural science. Carl Friedrich von Weizsacker nature men science Similar Authors Gabriel Lippmann physicist Burton Richter physicist Bruno Rossi physicist Bruce Maccabee physicist Brian Cox physicist Allan McLeod Cormack physicist All Authors