The Trained Memory / Being the Fourth of a Series of Twelve Volumes on the / Applications of Psychology to the Problems of Personal and / Business Efficiency

Those experiences that we are unable to recall are those that we disregarded when they occurred because they possessed no special interest for us. They are there, but no mental associations or connections with power to awaken them have arisen in consciousness.

we retain a great volume of sense-impressions of whose very recording we are at the time unaware.

the slightest attention. He is in the midst of a cataclysm