PREFACE
Few,especially in this country,realize that while Freudian themes have rarely found a place on the programs of American Psychological Association, they have attracted great and growing attention and found frequent elaboration(全力阐释） by students of literature, history, biography,sociology ,morals（伦理）and aesthetics(美学）,anthropology(人类学) , education, and religion.They have given the world a new conception（思路） of both infancy (儿童) and adolescence（青少年）
Few,especially in this country,realize that while Freudian themes have rarely found a place on the programs of American Psychological Association, they have attracted great and growing attention and found frequent elaboration(全力阐释） by students of literature, history, biography,sociology ,morals（伦理）and aesthetics(美学）,anthropology(人类学) , education, and religion.They have given the world a new conception（思路） of both infancy (儿童) and adolescence（青少年）
