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the idea that material riches make us happy has been around for a long time. In fact, the original definition of the word “happiness,” traced back to 1530 by The Oxford English Dictionary, was “good fortune or luck in life,” which reflected the belief that happiness comes from external circumstances largely outside of a person’s control. Psychologist Shigehiro Oishi, who has examined the historical definitions of happiness, notes that it was not until the 1961 Webster’s Third New International Dictionary that the definition of happiness as “good fortune; good luck; prosperity” was deemed archaic. Rather than uncontrollable things that happen to people, happiness came to mean a pleasant internal state or the satisfaction of one’s desires. Oishi suggests that because life became more controllable over time, happiness was no longer viewed as the result of whims of fortune but something that people could strive for and achieve.
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Timothy D. Wilson (Redirect: The Surprising New Science of Psychological Change)