Victor Kraft, Vienna 1880-Vienna 1975. Member of the Vienna Circle. Lecturer 1914-1924, until his dismissal by the Nazi regime in 1939. 'Kraft remained an unbiased empiricist throughout his political career. His main fields of work were methodology, epistemology and value theory. He accepted that philosophy should be a science (Wissenschaft) provable by experience, but Kraft rejected the sensualistic interpretation of experience stressing his realistic position'. Stuart Brown, D. Collinson, R. Wilkinson. Biographical dictionary of twentieth-century philosophers, p. 418