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 purpose. It is therefore natural to reverse the analogy, and to argue that some lowly, diffused form of the operations of Reason constitute the vast diffused counter-agency by which the material cosmos comes into being. This conclusion amounts to the repudiation of the radical extrusion of final causation from our cosmological theory. The rejection of purpose dates from Francis Bacon at the beginning of the seventeenth century. As a methodological device it is an unquestioned success so long as we confine attention to certain limited fields.

Provided that we admit the category of final causation, we can consistently define the primary function of Reason. This function is to constitute, emphasize, and criticize the final causes and strength of aims directed towards them.

The pragmatic doctrine must accept this definition. It is obvious that pragmatism is nonsense apart from final causation. For a doctrine can never be tested unless it is acted upon. Apart from this primary function the very existence of Reason is purposeless and its origination is inexplicable. In the course of evolution why should the trend have arrived at mankind, if his activities of Reason remain without influence on his bodily actions? It is well to be quite clear on the point that Reason is inexplicable if purpose be ineffective.

Thus at the very outset the primary physiological doctrine has to be examined. This examination leads to the distinction between the authority of science in the determination of its methodology and the