P. D. Ouspensky

Pyotr Demianovich Ouspenskii (known in English as Peter D. Ouspensky) was a Russian esotericist known for his expositions of the early work of the Greek-Armenian teacher of esoteric doctrine George Gurdjieff, whom he met in Moscow in 1915. Real Name: Пётр Демья́нович Успе́нский Born: 5 March [O.S. 21 February] 1878 Died: 2 October 1947