Our discussion of the objective basis of psychology has revealed the peculiarity, that objectification is in psychology a considerably more complicated matter than it is in the natural sciences. In the latter, control of subjectivity is in the main negative, involving simply the exclusion of disturbing subjective elements. In psychology, on the other hand, the attitude of the worker has also to be objectified. As a result of insufficient appreciation of this fact— and its appreciation involves great difficulties—we have become accustomed to finding in psychology (as in the mental sciences) a whole series of different “tendencies”. From the scientific point of view, this is not very satisfactory, and it is the task of psychology, by objectifying these various points of view, to bring about a greater consistency.