<http://webisa.webdatacommons.org/prov/313087860>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/90456675> .
<http://webisa.webdatacommons.org/90456675>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/prov/244167447>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/90456675> .
<http://webisa.webdatacommons.org/90456675>	<http://www.w3.org/ns/prov#value>	"Uriel Frisch: My suggestion is be careful not to separate mathematics, physics, engineering and other disciplines too early." .
<http://webisa.webdatacommons.org/90456675>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<pku.edu.cn> .