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404 produce a science of life in society which is broad enough to solve all the new social problems which are now forced upon us by the development of science and art, we shall find that the achievements of science and art will be overwhelmed by social reactions and convulsions.

We do not lack for attempts of one kind and another to satisfy the need which I have described. Our discussion is in excess of our deliberation, and our deliberation is in excess of our information. Our journals, platforms, pulpits, and parliaments are full of talking and writing about topics of sociology. The only result, however, of all this discussion is to show that there are half a dozen arbitrary codes of morals, a heterogeneous tangle of economic doctrines, a score of religious creeds and ecclesiastical traditions, and a confused jumble of humanitarian and sentimental notions which jostle each other in the brains of the men of this generation. It is astonishing to watch a discussion and to see how a disputant, starting from a given point of view, will run along on one line of thought until he encounters some fragment of another code or doctrine, which he has derived from some other source of education; whereupon he turns at an angle, and goes on in a new course until he finds himself face to face with another of his old prepossessions. What we need is adequate criteria by which to make the necessary tests and classifications, and appropriate canons of procedure, or the adaptation of universal canons to the special tasks of sociology.

Unquestionably it is to the great philosophy which has now been established by such ample induction in the experimental sciences, and which offers to man such new command of all the relations of life, that we must look for the establishment of the guiding lines in the study of sociology. I can see no boundaries to the scope of the philosophy of evolution. That philosophy is sure to