Acceptance of aggression as the inevitable result of a previous frustration (according to the Freudian concept) is the basic premise of this volume. It is the result of cooperative research by five authors and three collaborators and much of the material has resulted from a systematic study conducted at universities under relatively standardized conditions. The authors have pooled their ideas, conducted mutual criticism in order to unify the product. To a large degree, the book follows a consistent scientific pattern in defining, formulating and revising the application