2. _The physical efficiency of the worker is conditioned on wise consumption._ Chemists and physiologists are telling now in accurate terms how the nutritive values of foods differ. Food values are not measured by the pleasure afforded the palate. The wide variety and greater choice now possible, even to the modest purse, make the chance of error much greater than in simpler conditions. This subject, already touched upon in the sections on the efficiency of labor, deserves further notice. From youth to age, the foolish choice of goods yields its harvest of ultimate misery. When babies are fed on crackers dipped in coffee, or, as among the Italian immigrants, on stale bread dipped in sour wine, there is a poor foundation laid for a vigorous manhood. Rich and poor cook too much for taste and too little for nutrition or digestion. Much cooking is still done in ways fit only for our grandfathers who had cast-iron stomachs and worked in the open air. Culinary methods have not been adapted as yet to a sedentary life. [Sidenote: Of drinks] Drinking tempts some men not only by taste, but by the appeal to sociability; to other coarser natures the joys of Bacchus offer the one hope of exhilaration. The pleasure from alcoholic liquor may at the moment outweigh the cost in money, but a diseased appetite forbids any reckoning of the vast psychic cost that follows. The coin paid for the drink is the beginning of the expense; misery, disgrace, degeneracy, and bestialty too often are the unreckoned items. [Sidenote: Of clothing] Clothing is primarily for ornament, secondly for physical comfort. That was the historical order, and it is the logical order in most minds to-day. How badly the two needs are harmonized! No wonder that the savage suffers in adopting civilized dress. Travelers describe the African potentate, attired in a high hat and a bracelet, striving to outshine his rival resplendent in full-dress coat and a palm-leaf fan. Civilization is making headway there; but the student of primitive peoples finds one of the important causes of their decay to be their bad judgment in adopting civilized dress, unsuited to their customs and climate. A mistake is made likewise by workers in physical tasks in imitating the dress of the wealthy and professional classes. The dress of the higher classes often is chosen because of its unsuitableness for an active worker. It serves thus to mark its wearer as one engaged in delicate tasks or as a person of leisure. Possibly, therefore, because of their strong social ambitions, the manual workers in America more than elsewhere adopt a costume that is not sensible or sanitary. [Sidenote: Reactions of enjoyment upon the intelligence]