THERE ARE TWO MAIN STRATEGIES we can adopt to improve the quality of life. The first is to try making external conditions match our goals. The second is to change how we experience external conditions to make them fit our goals better. For instance, feeling secure is an important component of happiness. The sense of security can be improved by buying a gun, installing strong locks on the front door, moving to a safer neighborhood, exerting political pressure on city hall for more police protection, or helping the community to become more conscious of the importance of civil order. All these
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