About: http://webisa.webdatacommons.org/417791295

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	From your own source;The place of philosophy in physics was a theme to which Einstein returned time and again, it being clearly an issue of deep importance to him.I own the Pais bio, which says the same thing.
http://www.w3.org/ns/prov#wasQuotedFrom	phys.org