The connexion therefore between progress as we now envisage it, and unity, both in ourselves and in society at large, becomes apparent. At each of the previous great moments in the history of the West development has been secured by emphasis on one side of our nature at the expense of the rest. Visions of mankind in common progress have flashed on individual thinkers, a Roman Emperor, a Catholic Schoolman, a Revolutionary prophet. But the thing achieved has been one-sided, and the needed correction has been given by another movement more one-sided still. The greatest hope of the present day lies in the fact that in all branches of life, in government as well as in philosophy, in science as in social reform, in religion and in international politics, men are now striving with determination to bind the threads together. There is no necessary opposition between the rival forces which have so often led to conflict. In all our controversies harmony can be reached and has often been reached by the application of patience, knowledge, and goodwill. And goodwill implies here the readiness to submit the particular issue to the arbitration of the general good. The international question has been so fully canvassed in these days that it would be superfluous to discuss it here. The moral is obvious, and abundant cases throughout the world illustrate the truth that well-organized nationalities contain in themselves nothing contrary to the ideal of international peace.[3] Nor is the still more persistent and universal opposition of capital and labour really less amenable to reconciliation, because in this case also the two factors in the problem are equally necessary to social progress, and we shall not enter on the various practical solutions--co-operation, co-partnership, partial state-socialism, &c.--which have been proposed for a problem which no one believes to be insoluble. The conflict in our own souls between the things of matter and sense and the life of the spirit, is more closely germane to the present argument, because ultimately this has to be resolved, if not in every mind yet in the dominant mind of Europe, before the more practical questions can be generally settled. Harmony here is at the root of a sound idea of progress.