About: http://webisa.webdatacommons.org/257511733

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	He devoted the rest of his life to writing and teaching, including serving as a visiting academic at Princeton University, Columbia University and The George Washington University.
http://www.w3.org/ns/prov#wasQuotedFrom	newworldencyclopedia.org