RETENTION
In order that we may reproduce, it is necessary for us to retain; we cannot dispose of a thing that has passed from our possession; therefore after an object has been perceived it must be retained so that it may be reproduced. Retention is one of the great essentials of memory. The only way for persons to retain what they have seen, heard, or felt is for that particular thing to make an impression on them; therefore if they wish to retain they must perceive closely, examine the thought or object intently in order to find out its significance, study its purpose or meaning until they feel that they know all about it, and when satisfied on that point they may rest assured it has been perceived in such a manner as will enable them to retain it.
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