The relevant literature is reviewed and it is held that the relationships between nursing theory, practice, education and research are close and reciprocal relationships. Each is related to the other but it is argued that the hub ofthe relationships is nursing practice as nursing is a practice discipline.This paper is based on an address delivered on 10 July 1976 at the annual conference of the Association of Integrated and Degree Courses in Nursing held at the University of Hull, England.