Positive psychologists have studied this extensively. As long ago as the 1950s, Abraham Maslow said that a self-actualized person is someone who focuses on her talents and strengths. Director of the Penn Positive Psychology Center Dr. Martin Seligman, who has been called the father of positive psychology, has found that when people identify and use their top strengths regularly, they can be more productive and can experience a high level of self-esteem. (If you’d like to identify your top strengths, you can take Dr. Seligman’s free quiz).
Dr. Barbara Fredrickson, professor of psychology at the University of North Carolina