With ample knowledge of the sources of health, we allow and even compel the bulk of our population to live and work under conditions which greatly shorten life. In our mad race for wealth we have made gold more sacred than human life; we have made life so hard for many that suicide and insanity and crime are alike increasing. The struggle for wealth has been accompanied by a reckless destruction of the stored-up products of Nature, which is even more deplorable because irretrievable. Not only have forest growths of many hundred years been cleared away, often with disastrous consequences, but the whole of the mineral treasures of the earth's surface, the slow productions of long-past eras of time and geological change, have been and are still being exhausted with reckless disregard of our duties to posterity and solely in the interest of landlords and capitalists. With all our labor-saving machinery and all our command over the forces of Nature, the struggle for existence has become more fierce than ever before, and year by year an ever-increasing proportion of our people sink into paupers' graves. When the brightness of future ages shall have dimmed the glamour of our material progress he says that the judgment of history will surely be that our ethical standard was low and that we were unworthy to possess the great and beneficent powers that science had placed in our hands, for, instead of devoting the highest powers of our greatest men to remedy these evils, we see the governments of the most advanced nations arming their people to the teeth and expending most of the wealth and all the resources of their science in preparation for the destruction of life, of property, and of happiness. He reminds us that the first International Exhibition, in 1851, fostered the hope that men would soon perceive that peace and commercial intercourse are essential to national well-being. Poets and statesmen joined in hailing the dawn of an era of peaceful industry, and exposition following exposition taught the nations how much they have to learn from each other and how much to give to each other for the benefit and happiness of all. Dueling, which had long prevailed, in spite of its absurdity and harmfulness, as a means of settling disputes, was practically abolished by the general diffusion of a spirit of intolerance of private war; and as the same public opinion which condemns it should, if consistent, also condemn war between nations, many thought they perceived the dawn of a wiser policy between nations. Yet so far are we from progress toward its abolition that the latter half of the century has witnessed not the decay, but a revival of the war spirit, and at its end we find all nations loaded with the burden of increasing armies and navies.