This book presents a teleological analysis of the concepts of human behavior. Through distinctions and definitions, a model or system is developed, upon which all aspects of behavior are interrelated. The model of choice or purposeful state is discussed with its underlying concepts. Human communication and feeling, and cooperation and conflict involved in interpersonal relationships are explored as teleological concepts. The system analysis of individual behavior is applied to large groups to indicate its feasibility for the study of social processes. The author suggests objective research on behavior which is possible using the model developed. (NS)