This paper presents an overview of the knowledge afforded man from research into personality. Approaching his topic from a position valuing the study of persons from complementary psychological perspectives, the author attempts to derive some conclusion about human behavior and personality. He discusses the findings that there is basic continuity in personality; each person is capable of great differentiation in behavior; there are multiple determinants of human behavior; and there is a need to analyze social and psychological environments in order to understand individual behavior. From this common ground, the author suggests the need to specify clearly the goals, purposes and objectives of personality research. Different goals require different foci and different measurement strategies. The author views humans as active organisms interacting in active environments, where person variables must be taken into account so as to understand this interaction. In conclusion, the author suggests that researchers actively involve subjects in their own personality assessments, that information processing may yield increased knowledge of personality, and that a synthesis of various psychological constructs is needed. He further suggests an image of man as an active, aware problem-solver who is multi-faceted, multiply influenced, uniquely organized, yet open to study by scientific methods. (SJL)