The concept, once more, in its very generality, in its elevation above the intensities and conflicts of momentary passions and interests, is the conserver of the experience of the past. It is the wisdom of the past put into capitalized and funded form to enable the individual to get away from the stress and competition of the needs of the passing moment. It marks the difference between barbarism and civilization, between continuity and disintegration, between the sequence of tradition that is the necessity of intelligent thought and action, and the random and confused excitation of the hour. When we thus consider not the details of the positions of the sensationalist and rationalist, but the motives that have induced them to assume these positions, we discover what is meant in saying that the question is still a practical, a social one, and that the two schools stand for certain one-sided factors of social life. If we have on one side the demand for freedom, for personal initiation into experience, for variety and progress, we have on the other side the demand for general order, for continuous and organized unity, for the conservation of the dearly bought resources of the past. This is what I mean by saying that the sensationalist abstracts in conscious form the position and tendency of the Germanic element in modern civilization, the factor of appetite and impulse, of keen enjoyment and satisfaction, of stimulus and initiative. Just so the rationalist erects into conscious abstraction the principle of the Græco-Roman world, that of control, of system, of order and authority. That the principles of freedom and order, of past and future, or conservation and progress, of incitement to action and control of that incitation, are correlative, I shall not stop to argue. It may be worth while, however, to point out that exactly the same correlative and mutually implicating connection exists between sensationalism and rationalism, considered as philosophical accounts of the origin and nature of knowledge. The strength of each school lies in the weakness of its opponent. The more the sensationalist appears to succeed in reducing knowledge to the associations of sensation, the more he creates a demand for thought to introduce background and relationship. The more consistent the sensationalist, the more openly he reveals the sensation in its own nakedness crying aloud for a clothing of value and meaning which must be borrowed from reflective and rational interpretation. On the other hand, the more reason and the system of relations that make up the functioning of reason are magnified, the more is felt the need of sensation to bring reason into some fruitful contact with the materials of experience. Reason must have the stimulus of this contact in order to be incited to its work and to get materials to operate with. The cause, then, why neither school can come to rest in itself is precisely that each abstracts one essential factor of conduct.