"Observation is like a muscle. It grows stronger with use and atrophies without use. Exercise your observation muscle and you will become a more powerful decoder of the world around you."

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Ability is not something to be saved, like money, in the hope that you can draw interest on it. The interest comes from the spending. Unused ability, like unused muscles, will atrophy. It is tragic to realize that the majority of human beings, even the so-called educated, call upon only the smallest fraction of their potential capacity. They leave many talents dormant. They fail to develop their mental qualities. They are almost unaware of the degree of energy upon which they might call to build a full and rewarding life.

— Eleanor Roosevelt