novelties” is in itself only a dangerous half-truth of this kind. The constant element in life is, no less than the element of novelty and change, a matter of observation and experience. As the French have it, the more life changes the more it is the same thing. If, then, one is to be a sound individualist, an individualist with human standards--and in an age like this that has cut loose from its traditional moorings, the very survival of civilization would seem to hinge on its power to produce such a type of individualist--one must grapple with what Plato terms the problem of the One and the Many. My own solution of this problem, it may be well to point out, is not purely Platonic. Because one can perceive immediately an element of unity in things, it does not follow that one is justified in establishing a world of essences or entities or “ideas” above the flux. To do this is to fall away from a positive and critical into a more or less speculative attitude; it is to risk setting up a metaphysic of the One. Those who put exclusive emphasis on the element of change in things are in no less obvious danger of falling away from the positive and critical attitude into a metaphysic of the Many.[4] This for example is the error one finds in the contemporary thinkers who seem to have the cry, thinkers like James and Bergson and Dewey and Croce. They are very far from satisfying the requirements of a complete positivism; they are seeking rather to build up their own intoxication with the element of change into a complete view of life, and so are turning their backs on one whole side of experience in a way that often reminds one of the ancient Greek sophists. The history of philosophy since the Greeks is to a great extent the history of the clashes of the metaphysicians of the One and the metaphysicians of the Many. In the eyes of the complete positivist this history therefore reduces itself largely to a monstrous logomachy.