Develops a theory of psychology as a humanistic science of human conduct, with an emphasis on experiencing, learning, and personality. Critically examines four philosophical views which the author feels have prevented the positive formulation of a humanistic philosophy: Chisholm's logic, Ryle's psychology, Madden's behaviorism, and Hamlyn's ethics. Suitable for the upper-level and graduate student of philosophy, particularly the philosophy of science, and psychology.