The perception of what passes in a man's own mind. We must not confound the terms consciousness and conscience; for though the Latin be ignorant of any such distinction, including both in the word conscientia, yet there is a great deal or difference between them in our language. Consciousness is confined to the actions of the mind, being nothing else but that knowledge of itself which is inseparable from every thought and voluntary motion of the soul. Conscience extends to all human actions, bodily as well as mental. Consciousness is the knowledge of the existence; conscience of the moral nature of actions. Consciousness is a province of metaphysics, conscience of morality.