Three-Centered Self-Observation
In trying to control an observed 'I', you must remember that it is something that thinks, and feels and moves—that is, each representation of it in each center is different. The control of the human machine is difficult therefore because everything that is formed in it psychologically —namely, as an 'I'—is represented in three entirely different ways, that seem at first sight unconnected.
For example, you frown. This is in Moving Center. But this frowning is represented in the Emotional Center as a feeling, and it is represented in the Intellectual Center as a thought or a gramophone record—that is, a series of thoughts going round and round mechanically. Full observation of an 'I' is the observation of it in all the three centers of its origin simultaneously.
Maurice Nicoll, "Psychological Talk" in Psychological Commentaries on the Teaching of Gurdjieff and Ouspensky (Vol. 1, p. 136)