About: http://webisa.webdatacommons.org/39472058

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 wrote prolifically on science, religion, history, and culture and was a popular public speaker on these topics.
http://www.w3.org/ns/prov#wasQuotedFrom	libertyfund.org