Optimism and hope—like helplessness and despair—can be learned. Underlying both is an outlook psychologists call self-efficacy, the belief that one has mastery over the events of one’s life and can meet challenges as they come up. Developing a competency of any kind strengthens the sense of self-efficacy, making a person more willing to take risks and seek out more demanding challenges. And surmounting those challenges in turn increases the sense of self-efficacy. This attitude makes people more likely to make the best use of whatever skills they may have—or to do what it takes to develop
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