What are we going to make? First, we are going to finish up, and carry out into all desirable species, our great idea of an iron slave, the illustrious Man Friday of our modern civilization. Whether we put water, air, or ether into his aorta, as the medium of converting heat into force, we shall at last have a safe subject, available for all sorts of drudgery, that will do the work of a man without eating more than half as much weight of coal as a man eats of bread and meat. Next, carrying into all departments of human industry, in its perfect development, this new creature, which has already, as a mere infant, made so stupendous a change in some of them, we shall make the human millions all masters, from being nearly all slaves. We shall make both idleness and poverty nearly impossible. Human labor, as a general thing, is a positive pleasure only when the hand and brain work in concert. Hence, the more you increase well-devised and efficient machinery, which requires and rewards intelligent oversight and skilful direction, the more you increase the love of labor. We have already manufacturing communities so well supplied with tasks for brains and hands, that everybody works, or would do so but for Circe and her seductive hollow-ware. We are beginning to push machinery into agriculture, where it will have still greater scope. With the means we now have, in the enormously increased production of iron, our almost omnipresent and omnipotent machine-shops, our railroads leading everywhere, another century, or perhaps half of it, will see every arable rood of the earth and every rood that can be made arable, ploughed, sowed, and the crops harvested by iron horses, iron oxen, or iron men, under the free and intelligent supervision of people who know how to feed, drive, doctor, and make the most of them.