Section 5 - The Four Faculties or Motions of the Sensorium
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The spirit of animation has four different modes of action, or in other words, the animal sensorium possesses four different faculties, which are occasionally exerted, and cause all the contractions of the fibrous parts of the body.
These four faculties of the sensorium during their inactive state are termed irritability, sensibility, voluntarily, and associability; in their active state they are termed as above, irritation, sensation, volition, and association.