Hans Jonas (1903-1993) was the Alvin Johnson Professor of Philosophy at the New School for Social Research from 1955 to 1976.  He was born and educated in Germany where he studied under  Edmund Husserl, Martin Heidegger, and Rudolf Bultmann. He left Germany in 1933 and lived in Palestine and England before coming to North America. He influenced ethical philosophy--especially bioethics--and the study of gnosticism.