Note 79 — Chapter VII · THE NATURE OF EMOTION.

“When any great passion causes all the physical and moral troubles which it will cause, what I conceive to happen is that a physical impression made on the sense of sight or of hearing is propagated along a physical path to the brain, and arouses a physical commotion in its molecules; that from this centre of commotion the liberated energy is propagated by physical paths to other parts of the brain; and that it is finally discharged outwardly through proper physical paths, either in movements or in modifications of secretion and nutrition. The passion that is felt is the subjective side of the cerebral commotion—its motion out from the physical basis, as it were (e-motion), into consciousness.”—Pathology of Mind, 1879, p. 222.