In The Normal Personality, Steven Reiss argues that human beings are naturally intolerant of people who express values significantly different from their own. Because of this intolerance, psychologists and psychiatrists sometimes confuse individuality with abnormality and thus over-diagnose disorders. Reiss shows how normal motives - not anxiety or traumatic childhood experiences - underlie many personality and relationship problems, such as divorce, infidelity, combativeness, workaholism, loneliness, authoritarianism, weak leadership style, perfectionism, underachievement, arrogance, extravagance, pompousness, disloyalty, disorganisation, and over-anxiety. Calling for greater understanding and tolerance of all kinds of personalities, Reiss applies his theory of motivation to leadership, human development, relationships, and counselling.