About: http://webisa.webdatacommons.org/36998621

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	Classical economists such as William Petty, Adam Smith, David Ricardo and Karl Marx in their contributions to political economy, as it was called then, never said otherwise.
http://www.w3.org/ns/prov#wasQuotedFrom	alexmthomas.com