Yet instead of subjecting traditional ideas and rules to a thoroughgoing reconsideration, our impulse is, as we have seen, to hasten to justify existing and habitual notions of human conduct. There are many who flatter themselves that by suppressing so-called "radical" thought and its diffusion, the present system can be made to work satisfactorily on the basis of ideas of a hundred or a hundred thousand years ago. While we have permitted our free thought in the natural sciences to transform man's old world, we allow our schools and even our universities to continue to inculcate beliefs and ideals which may or may not have been appropriate to the past, but which are clearly anachronisms now. For, the "social science" taught in our schools is, it would appear, an orderly presentation of the conventional proprieties, rather than a summons to grapple with the novel and disconcerting facts that surround us on every side. At the opening of the twentieth century the so-called sciences of man, despite some progress, are, as has been pointed out, in much the same position that the natural sciences were some centuries earlier. Hobbes says of the scholastic philosophy that it went on one brazen leg and one of an ass. This seems to be our plight to-day. Our scientific leg is lusty and grows in strength daily; its fellow member--our thought of man and his sorry estate--is capricious and halting. We have not realized the hopes of the eighteenth-century "illumination", when confident philosophers believed that humanity was shaking off its ancient chains; that the clouds of superstition were lifting, and that with the new achievements of science man would boldly and rapidly advance toward hitherto undreamed-of concord and happiness. We can no longer countenance the specious precision of the English classical school of economics, whose premises have been given the lie by further thought and experience. We have really to start anew. The students of natural phenomena early realized the arduous path they had to travel. They had to escape, above all things, from the past. They perceived that they could look for no help from those whose special business it was to philosophize and moralize in terms of the past. They had to look for light in their own way and in the directions from which they conjectured it might come. Their first object was, as Bacon put it, _light_, not _fruit_. They had to learn before they could undertake changes, and Descartes is very careful to say that philosophic doubt was not to be carried over to daily conduct. This should for the time being conform to accepted standards, unenlightened as they might be.