On the other hand, it is of course equally necessary to induce physiologists and doctors to be interested in these problems ( of the value of the valuations which have prevailed up to the present): in this connection the professional philosophers may be trusted to act as the spokesmen and intermediaries in these particular instances, after, of course, they have quite succeeded in transforming the relationship between philosophy and physiology and medicine, which is originally one of coldness and suspicion, into the most friendly and fruitful reciprocity. In point of fact, all tables of values, all the “thou shalts” known to history and ethnology, need primarily a physiological , at any rate in preference to a psychological, elucidation and interpretation; all equally require a critique from medical science. The question, “What is the value of this or that table of ‘values’ and morality?” will be asked from the most varied standpoints. For instance, the question of “valuable