But most of us know too little of the past to realize the penalty that had to be paid for this application of intelligence. In order that these discoveries should be made and ingeniously applied to the conveniences of life, _it was necessary to discard practically all the consecrated notions of the world and its workings which had been held by the best and wisest and purest of mankind down to three hundred years ago_--indeed, until much more recently. Intelligence, in a creature of routine like man and in a universe so ill understood as ours, must often break valiantly with the past in order to get ahead. It would be pleasant to assume that all we had to do was to build on well-designed foundations, firmly laid by the wisdom of the ages. But those who have studied the history of natural science would agree that Bacon, Galileo, and Descartes found no such foundation, but had to begin their construction from the ground up. The several hopes of reform mentioned above all assume that the now generally accepted notions of righteous human conduct are not to be questioned. Our churches and universities defend this assumption. Our editors and lawyers and the more vocal of our business men adhere to it. Even those who pretend to study society and its origin seem often to believe that our present ideals and standards of property, the state, industrial organization, the relations of the sexes, and education are practically final and must necessarily be the basis of any possible betterment in detail. But if this be so Intelligence has already done its perfect work, and we can only lament that the outcome in the way of peace, decency, and fairness, judged even by existing standards, has been so disappointing. There are, of course, a few here and there who suspect and even repudiate current ideals and standards. But at present their resentment against existing evils takes the form of more or less dogmatic plans of reconstruction, like those of the socialists and communists, or exhausts itself in the vague protest and faultfinding of the average "Intellectual". Neither the socialist nor the common run of Intellectual appears to me to be on the right track. The former is more precise in his doctrines and confident in his prophecies than a scientific examination of mankind and its ways would at all justify; the other, more indefinite than he need be.