If you do not use your arms or legs for some time, they become weak. 1. Everybody knows this, and nobody would think of questioning this fact.
Yet there are many people who do not seem to know much about memory. 2. When someone says that he has a good memory, he really means that he keeps his memory in practice by exercising it regularly.
When someone else says that his memory is poor, it is actually his fault. 3. The position is exactly the same as that of two people, one of whom exercises his arms and legs by playing tennis, while the other sits in a chair or a motor-car all day. 4. But if he tells us that he has a poor memory, many of us think that his parents are to blame, or that he is just unlucky. Few of us realize that it is just his own fault.
5. But all of us can, if we have ordinary bodies and brains, improve our strength and our memory by the same means — practice.