Rollo May (1909-1994) taught at Harvard, Princeton, and Yale, and was Regents' Professor at the University of California, Santa Cruz. An influential psychologist, he was the best-selling author of Love and Will, as well as the author of The Courage to Create, Man's Search for Himself, The Meaning of Anxiety, and Psychology and the Human Dilemma.

Rollo May defines power as the ability to cause or prevent change; innocence, on the other hand, is the conscious divesting of one's power to make it seem a virtuea form of powerlessness that Dr. May sees as particularly American in nature. From these basic concepts he suggests a new ethic that sees power as the basis for both human goodness and evil. Dr. May discusses five levels of power's potential in each of us: the infant's power to be; self-affirmation, the ability to survive with self-esteem; self-assertion, which develops when self-affirmation is blocked; aggression, a reaction to thwarted assertion; and, finally, violence, when reason and persuasion are ineffective.