Have you ever wondered why some people are more tolerant and accepting to difference than others? This book is ground-breaking in its scope. Guarding Tolerance is the first comprehensive publication about tolerance of human diversity which explores historical, philosophical (including the controversial relationship between freedom of speech and tolerance) and psychological aspects of tolerance as well as educational implications informed by theory and research. Rivka Witenberg suggests a new direction in research and theory, and proposes an alternative way of viewing tolerance as a concept in its own right better placed within the moral domain and not simply the opposite of prejudice. When tolerance is placed within the moral domain pertaining to equality, justice, respect and avoiding harm to others, it should be viewed as positive in nature rather than simply forbearance or "putting up with". She argues that to be tolerant is a fundamental human quality as central to human existence as love, justice, empathy and fairness, and that tolerance is instinctive. While tolerance and intolerance do coexist, intolerance is not innate. Understanding more about the nature of tolerance to human diversity in today's increasingly diverse and complex world could not be more important for harmonious, cooperative intergroup living. Witenberg reflects on the origin of tolerance and its deep historical roots, exemplified by the "Golden Rule". Analysis of philosophical theories and her psychological research about tolerance to human diversity will further expand our understanding of this important matter. This book is bringing a new outlook on the questions about what tolerance is, how it is conceptualised and its practical implications. It is written in approachable language which allows everybody to understand this important topic. Moving away from the idea that tolerance is simply "putting up with" and the antithesis to prejudice, this is a major interdisciplinary work that alters our understanding of tolerance to human diversity. This book is unique in its approach and subject matter, and should be of value to educators and policy makers, but also to anyone interested in understanding this important issue.