 Hartley’s model of the self in terms of imagination, ambition, and self-interest, and then of sympathy, theopathy, and the moral sense, is dynamically complex. In his moral psychology, emotions are like electrical charges that easily jump from one object, symbol, word, or thought to another. Through such “transferences” of emotion, the six orientations develop content; like physical concretions, they coalesce, as emotional energies are bonded together. And when the energy in one is sufficiently strong, the orientation becomes the person’s “primary pursuit”: it demands accretion of pleasure.