About: http://webisa.webdatacommons.org/300692931

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	'Public speakers' (???????????????) would include teachers of rhetoric, politicians, and lawyers; the sophists lectured on a variety of topics, including philosophy.
http://www.w3.org/ns/prov#wasQuotedFrom	uchicago.edu