In the presidential campaign of 1912, Roosevelt “bolted” from the Republican party. It was hard for the older Republicans to follow him. While one occasionally found a follower of Roosevelt who was gray, one usually found the old Republicans standing by the old party, the younger ones joining the Progressive party. It is said that when Darwin published “The Origin of Species,” very few old men accepted the doctrine of evolution. The adherents of the new doctrine were nearly all young men. So there is such a thing as an intellectual habit. One comes to take a definite stand when facing certain definite intellectual situations.
Similar to the type of habits which we have called intellectual is another type which may be called “moral.” When we face the situation of reporting an occurrence, we can tell the truth or we can lie. We can build up the habit of meeting such situations by telling the truth on all occasions. We can learn to follow the maxim “Tell the truth at all times, at all hazards.” We can come to do this automatically, certainly, and without thought of doing anything else.
Most moral situations are fairly definite and clear-cut, and for them we can establish definite forms of response. We can form the habit of helping a person in distress, of helping a sick neighbor, of speaking well of a neighbor; we can form habits of industry, habits of perseverance. These and other similar habits are the basis of morality.
The various kinds of habits which we have enumerated are alike in certain fundamental particulars. In all of them there is a definite situation followed by a definite response. One sees the switch and turns off the light; he sees the expression “nine times nine” and says “eighty-one”; he sees a lady he knows and tips his hat; in meeting a carriage on the road, he turns to the right; when he has to vote, he votes a certain ticket; when he has to report an occurrence, he tells it as it happened. There is, in every case, a definite situation followed by a definite response.
Another characteristic is common to all the cases mentioned above, i.e. the response is acquired, it does not come at first. In every instance we might have learned to act differently. We could form the habit of always leaving the light burning; could just as easily say “nine times nine equals forty”; we could turn to the left; we could vote the Republican ticket. We can form bad moral habits as well as good ones, perhaps more easily. The point is, however, that we acquire definite ways of acting for the same situations, and these definite ways of acting are called habits.
Habit and Nerve-Path. It has already been stated that a habit is a tendency toward a certain type of action in a certain situation. The basis of this tendency is in the nervous system. In order to understand it we must consider what the nervous system is like. Nerves terminate at one end in a sense organ and at the other end ultimately in a muscle.
In Figure [II], A is a sense organ, B a nerve going from the sense organ to the brain C. D, E, F, G, and H are motor nerves going from the brain to the muscles. Now, let us show from the diagram what organization means and what tendency means. At first when the child sees the expression “nine times nine,” he does not say “eighty-one.” The stimulus brings about no definite action. It is as likely to go out through E or F as through D. But suppose we can get the child to say “nine times nine equals eighty-one.” We can write the expression on the blackboard and have the child look at it and say “nine times nine equals eighty-one.” Suppose the act of saying “eighty-one” is brought about by the nerve-current going out through nerve-chain D. By repetition, we establish a bond. A stimulus of a particular kind comes through A, goes over B to C, and out over D, making muscles at M bring about a very definite action in saying “eighty-one.”
Figure II.—The Organization of Tendencies