And for what purpose does the plant spring up, the soil feed and nourish it, and the blessed sun mature its seeds? To adorn, no doubt, the surface of the beautiful earth, and to keep alive and propagate its species; but principally to nourish the animal races which supply food and yield their service to man. And, upon the study of this nurture and feeding of the animal races, how much intellect has been expended! Has the stoker who heaps coals upon the engine fire, and turns one tap occasionally to maintain the water-level in the boiler, or another to give passage to the steam--and thus keeps the pile-driver, or the coal-drawer, or the tin mine, or the locomotive, or the steam-boat, or the colossal pumps of the Haarlem lake, in easy and continuous operation--has he, or has the man who curiously watches his operations--have either of them any idea of the long days of intellectual toil--of the sleepless nights, during which invention was on the rack--of the mental dejection and throes of suffering, under which new thoughts were born--of the lives of martyred devotion which have been sacrificed, while, or in order that the machine, which is so obediently simple and easily managed, was or might be brought to its present perfection? Yet all this has been, and has been suffered by men now gone, though the ignorance of the humble workman, little more thoughtful than the iron he works with, fails either to feel or to understand it. And so too often it is with you who feed, and with you who look at the simple process of feeding stock. As the turnip and the barley, and the oats and the linseed, and the beans, are placed before the almost perfect short-horn, or the graceful Ayrshire, or the untamed West Highlander, or the stately stallion, or the well-bred Leicester or Cheviot ram, or the cushioned and padded Berkshire porker--how little do you know or think of the science, and long skill, and intellectual labour, which have been expended in preparing what is to you so simple! It is not without and beyond the ranks of the agricultural community only that we need look for those who lessen the intellectual character of rural industry, and of the rural life. Too many of our practical men, even of high pretensions, are themselves only the stokers of the agricultural machine; and, like ungrateful and degenerate children, in their ignorance deny the head of the mother that bred and fed them.[2]