the Teaching is Gurdjieffs

Major Frank S. Pinder

All that Ouspensky had of value, he got from Gurdjieff, and that only with his mind. He had a perfunctory fling at the movements; and even confessed to being lazy.

I've looked over Ouspensky's Tertium Organum and New Model, but have seen none of Nicoll's books. Both men were professional writers and philosophers, plagiarists of 'mystical' writings. Ouspensky, all his great brain, was, for what was real, unintelligent; and it was inevitable that Ouspensky should cut himself and his pupils off from Gurdjieff. It is strange that there can be talk of "Ouspensky's Teaching", and "Gurdjieff-Ouspensky System": the Teaching is Gurdjieff's.

C.S. Nott - Further teachings of Gurdjieff (Chapter "F.S.Pinder")

(Frank Pinder was a mining engineer and a major in British Intelligence who served in the army under Holman for Denikin in the Caucasus. He met Gurdjieff in Tiflis and later joined the Institute in Fontainebleau)