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The ego is not only the unobserved mind, the voice in the head which pretends to be you, but also the unobserved emotions that are the body's reaction to what the voice in the head is saying.

Eckhart Tolle (2006). “A New Earth (Oprah #61): Awakening to Your Life's Purpose”, p.90, Penguin
The ego is not only the unobserved mind, the voice in the head which pretends to be you, but also the unobserved emotions that are the body's reaction to what the voice in the head is saying.