Man is a machine, but a very peculiar machine. He is a machine which, in right circumstances, and with right treatment, can know that he is a machine, and having fully realized this, he may find the ways to cease to be a machine.
First of all, what man must know is that he is not one; he is many. He has not one permanent and unchangeable “I” or Ego. He is always different. One moment he is one, another moment he is another, the third moment he is a third, and so on, almost without end.

Author: P.D. Ouspensky