The papers published in this volume do not attempt to present the psychoanalytic theory of human behavior in a systematic fashion. What gives them unity, however, is their place in the only existing coherent theory of human behavior capable of encompassing the intricate developmental relationship of the individual and his human environment. The papers here assembled are contributions to important areas of psychoanalytic knowledge. One such area is the function of theory in psychoanalysis. As the core of psychoanalytic hypotheses, the theory of instinctual drives and its connection to affects in general and to anxiety in particular are discussed. Two papers deal with little explored facets: sublimation of the drives and their relation to values and problems of behavior. Finally, in this section, there are two papers presenting reformulations of the theory of the aggressive and libidinal drives. (PsycINFO Database Record (c) 2005 APA, all rights reserved).