Madame Ouspensky was a major contributor to the transmission of Gurdjieff’s ideas and teachings. She directed the studies of Gurdjieff's work at Mendham, New Jersey.

It’s Up to Ourselves - An excerpt on Madame Ouspensky by Jessmin Howarth

“Having felt, every time I came from her room, that whatever Madame said regarding the Work, organization, Mr. Gurdjieff, the house, or even individual people, was of general application and always connected with higher principles, I have decided to write down what and how I remember her conversations.”