<http://webisa.webdatacommons.org/prov/43745121> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/14954483> . <http://webisa.webdatacommons.org/14954483> <http://www.w3.org/ns/prov#wasQuotedFrom> <traditioninaction.org> . <http://webisa.webdatacommons.org/prov/44016111> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/14954483> . <http://webisa.webdatacommons.org/14954483> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/14954483> <http://www.w3.org/ns/prov#value> "In the U.S. he taught at Columbia, Rochester, Princeton and other universities." .