Ouspensky, P. D. (translated from Russian by Nicholas Bessaraboff and Claude Bragdon)
Tertium Organum: A Key to the Enigmas of the World (1947)
ICI Shelf: Paracelsus
First Line: “The most difficult thing to know is what we do know, and what we do not know.”
ICI History: Today at the ICI — Twitter Feed (03-06-13)
Accession #: ICI-00102