Consciousness is that faculty by which we know we perceive, reason, remember, will, or possess emotions. By its operation we know that we exist, have a mind, and what that mind does.
Memory is that faculty by which we are able to recall to consciousness the knowledge we possess of past events.
Reason is that faculty by which we are able to make use of what we know and to acquire new knowledge. For instance, I know the distance between two places is sixty miles, and I know that the cars, going between the places, travel at the rate of twenty miles an hour, and that they leave at four o’clock. Without reason, I could never of myself, know the two new facts, that it would require three hours to make the journey, and that the arrival will be at seven o’clock. The faculty of reason is one of the most distinctive of the human mind.
The Will.—In consequence of our perceptions, our consciousness, our memory, our reason, we are in a condition to know a good deal of what is about us, and of ourselves, and we desire to bring ourselves into relation with the outside world, and therefore we act. There is a faculty of mind that allows us to choose how to act, and this is called the will, or that faculty of the mind “by which we are capable of choosing.” By the action of the will, we direct and control the voluntary muscles and motions of the body, while the action of the mind is also largely under its control.
It may truly be said that unless we are under the compulsion of some physical force, we always choose to do whatever we most wish to do. This liberty of choosing is called “freedom of the will,” and because we are free to choose, we are responsible for the consequences of our choice. We say, in common language, a person is responsible for what he does, and both human and divine law holds each to a strict accountability for his conduct, because all are free to choose how they will conduct themselves.
The Emotions or Feelings.—The emotions are joy, love, grief, hatred, anger, jealousy, and other like conditions, and we speak of them as “natural,” because they appear without the operation of our intellect or will, and the capacity for them seems to be a part of our existence. They should, however, be under the control of reason and will, and a person who gives way to his feelings, as of jealousy, and murders, is held responsible by human and divine law. But though we control them, we cannot prevent their action, and we must, as long as we live, feel love and joy, be affected by grief, suffer from anger, or be jealous.
Instincts.—These belong largely to our animal nature; our appetites and desires are instincts, and we speak of them as “natural.” Children want food and drink before they know what it is they want, and birds in the nest, open their little mouths for the worm their mother brings them.
Appetites indulged in become strong, and are often uncontrolled by the reason and will; as the indulged appetite for liquor. A strong and healthy mind should control the appetites, as we have learned it should control the emotions, and we are justly held responsible for the consequences of an indulged appetite.
Moral Faculties.—There exists in the mind of man a knowledge of right and wrong, and a feeling of obligation to respect the rights of others. We can hardly conceive of a man in his right mind who does not know it is wrong to lie, or steal, or murder. The capacity to know right from wrong is called conscience.
Most people, perhaps all, have a feeling of relation and obligation to a higher moral being than man. The feeling to do right because it is pleasing to a God to whom we are directly responsible, is the foundation of our religious convictions.