Conant, Douglas R. “The Power of Idealistic-Realism: How Great Leaders Inspire and Transform.” Harvard Business Review, 12 января 2012 г. Сайт .
148
Kennedy, John F. “John F. Kennedy Moon Speech – Rice Stadium.” 12 сентября 1962. Сайт .
149
Watson, David. “Positive Affectivity: The Disposition to Experience Pleasurable Emotional States.” Chap. 8 in Handbook of Positive Psychology. Edited by C. R. Snyder and Shane J. Lopez. New York: Oxford University Press, 2002.
