The Foundations of Personality [22]
to the recent past, though his remote past is clear. Since memory is the basis of certainty, of the feeling of reality, these unfortunates are afflicted with an uncertainty, a sense of unreality, that is almost agonizing. As the effects of the poison wear off, which even in favorable cases takes months, the impressibility returns but never reaches normality again. Unquestionably there is an inherent congenital difference in memory capacity. There are people who are prodigies of memory as there are those who are prodigies of physical strength,--and without training. The IMPRESSIBILITY for memories can in no way be increased except through the stimulation of interest and a certain heightening of attention through emotion. For the man or woman concerned with memory the first point of importance is to find some value in the fact or thing to be learned. Before a subject is broached to students the teacher should make clear its practical and theoretic value to the students. Too often that is the last thing done and it is only when the course is finished that its practical meaning is stressed or even indicated. In fact, throughout, teaching the value of the subject should constantly be emphasized, if possible, by illustrations from life. There are only a few who love knowledge for its own sake, but there are many who become eager for learning when it is made practical. The number of associations given to a fact determines to a large extent its permanence in memory and the power of recalling it. In my own teaching I always instruct my students in the technique of memorizing, as follows: 1. Listen attentively, making only as many notes as necessary to recall the leading facts. The auditory memories are thus given the first place. 2. Go home and read up the subject in your textbooks, again making notes. Thus is added the visual associations. 3. Write out in brief form the substance of the lecture, deriving your knowledge from both the lecture and the book. You thus add another set of associations to your memories of the subject. 4. Teach the subject to or discuss it with a fellow student. By this you vitalize the memories you have, you link them firmly together, you lend to them the ardor of usefulness and of victory. You are forced to realize where the gaps, the lacunae of your knowledge come, and are made to fill them in. Thus the best way to remember a fact is to find a use for it and to link it to your interests and your purposes. Unrelated it has no value; related it becomes in fact a part of you. After that the mechanics of memory necessitate the making of as many pathways to that fact as possible, and this means deliberately to associate the fact by sound, by speech and by action. The advertised schemes of memory training are simply association schemes, old as the hills, and having value indeed, but too much is claimed for them. A splendid memory is born, not made; but any memory, except where disease has entered, can be improved by training. It is because lectures on the whole do not supply enough associations or arouse enough interest that the lecture is the poorest method of teaching or learning. Man's mind sticks easily to things, but with difficulty to words about things. To maintain attention for an hour or so, while sitting, is a task, and there develops a tendency either to a hypnoidal state in which the mind follows uncritically, or to a restless uneasiness with wandering mind and fatigue of body. A demonstration, on the other hand, a laboratory experiment with short, personal instruction, a bodily contact with the problem calls into play interest, enthusiasm, curiosity, motor images, the use of the hands, and is THE method of teaching. There are at present excellent psychological methods of testing out the memory capacity. Every one engaged in any responsible work, or troubled about his memory, should be so tested. While there are other qualities of mind of great importance, memory is basic, and no one can really understand himself who is in doubt about his memory. In such diseases as neurasthenia one of the commonest