P. D. Ouspensky

Pyotr Demianovich Ouspenskii (known in English as Peter D. Ouspensky; Russian: Пётр Демья́нович Успе́нский, romanized: Pyotr Demyánovich Uspénskiy; 5 March 1878 – 2 October 1947)^[2] was a Russian philosopher and esotericist known for his expositions of the early work of the Greek-Armenian teacher of esoteric doctrine George Gurdjieff. He met Gurdjieff in Moscow in 1915, and was associated with the ideas and practices originating with Gurdjieff from then on. He taught ideas and methods based in the Gurdjieff system for 25 years in England and the United States, although he separated from Gurdjieff personally in 1924, for reasons that are explained in the last chapter of his book In Search of the Miraculous.

Ouspensky studied the Gurdjieff system directly under Gurdjieff's own supervision for a period of ten years, from 1915 to 1924. In Search of the Miraculous recounts what he learned from Gurdjieff during those years. While lecturing in London in 1924, he announced that he would continue independently the way he had begun in 1921. Some, including his close pupil Rodney Collin, say that he finally gave up the system in 1947, just before his death, but his own recorded words on the subject ("A Record of Meetings", published posthumously) do not clearly endorse this judgement.^[3]