Page:Memory; how to develop, train, and use it - Atkinson - 1919.djvu/86

80 given in this chapter for the reason that much of the instruction to be given under the head of the several phases and classes of memory is based upon an application of the Law of Association, in connection with the law of Attention. These fundamental principles should be clearly grasped before one proceeds to the details of practice and exercise. One should know not only “how” to use the mind and memory in certain ways, but also “why” it is to be used in that particular way. By understanding the “reason of it,” one is better able to follow out the directions.