which occurs for the most part or entirely as the result of conflict with the sexual tendencies when thus primitively directed. As regards the motive forces engaged in this conflict, there is again at present much uncertainty, but they probably to some extent differ from one case to another. The conflict would seem to be waged, sometimes between two aspects of the sexual impulse, _e. g._ between Narcissism and object-love or between physical desire and tender affection (when these elements have been dissociated in the ways we have already studied). In other cases the gregarious instincts are probably engaged in the manner suggested by Trotter and others; while, in still other instances, there may be an antagonism between the sexual impulses and the tendencies of self-assertion, self-respect or self-preservation, as emphasised especially by Freud. For a more general discussion of the factors concerned in sexual inhibition, see E. Bleuler, "Der Sexualwiderstand", _Jahrbuch für psychoanalytische und psychopathologische Forschungen_, 1913, V, 442, and J. C. Flügel, "On the Biological Basis of Sexual Repression and its Sociological Significance", _British Journal of Psychology_ (_Medical Section_), 1921, I, 225.] CHAPTER XVIII ETHICAL AND PRACTICAL APPLICATIONS--LOVE AND HATE ASPECTS [Sidenote: Practical conclusions] Having now completed our theoretical survey, it may be well to undertake, as a final instalment of our task, some brief consideration of the main practical conclusions that emerge from our psychological study of the family relationships. The general nature of these practical conclusions has indeed already emerged with some degree of clearness at various points in our review; but a recapitulation or reconsideration of the chief points as regards which the psychological processes and principles with which we have been concerned would seem to admit of, and to demand, practical application, may perhaps prove of some value, now that we have reached the end of the descriptive and theoretical portions of our task. [Sidenote: They have to a large extent already emerged] [Sidenote: as usual in psycho-analytic investigations]