This report presents and evaluates a simple thesis: that privacy, a manifestation of human territoriality, is a fundamental bio-social need. Aggression can serve to insure privacy. Privacy, then, allows one the freedom to explore the environment. It permits intimacy with others, and it fosters access to one's own inner feelings and experiences, a precondition for creativity. Essentially, privacy, territoriality, crowding, aggression, intimacy and creativity are seen as biological predispositions whose manifestations are greatly modified by social circumstances. The remarks presented here consider definitions, examples and functions of these several terms and concepts, and attempt to relate these concepts, sociologically, to the self, to others, and to one's environment. (TA)