Army Chief of Staff General George W. Casey with Martin Seligman, the founder of the Positive Psychology movement and developer of the theory of ‘learned helplessness,’ at the Comprehensive Soldier Fitness program at the University of Pennsylvania, Ph

Army Chief of Staff & Seligman

Army Chief of Staff General George W. Casey with Martin Seligman, the founder of the Positive Psychology movement and developer of the theory of ‘learned helplessness,’ at the Comprehensive Soldier Fitness program at the University of Pennsylvania, Philadelphia, May 2009