Noting a recent trend in psychology to replace chapters on the nervous system in textbooks of psychology with chapters on sociology, Walker examines critically this trend toward sociology. It can be considered an advance because it aims at greater predictability of behavior and hence greater control of it. But Walker cautions that this trend can be misused. The recognition of the relativity of psychological generalizations to particular sets of sociological conditions does not mean that psychological laws can be reduced to sociological ones. Walker feels that the observation of different sociological conditions in molding 'the basic motives' to action is often the only method the psychologist has to work with.