But during the earlier quasi-peaceable stage, when so many of the traditions through which the institution of a leisure class has affected the economic life of later times were taking form and consistency, this principle has had the force of a conventional law. It has served as the norm to which consumption has tended to conform, and any appreciable departure from it is to be regarded as an aberrant form, sure to be eliminated sooner or later in the further course of development. The quasi-peaceable gentleman of leisure, then, not only consumes of the staff of life beyond the minimum required for subsistence and physical efficiency, but his consumption also undergoes a specialisation as regards the quality of the goods consumed. He consumes freely and of the best, in food, drink, narcotics, shelter, services, ornaments, apparel, weapons and accoutrements, amusements, amulets, and idols or divinities. In the process of gradual amelioration which takes place in the articles of his consumption, the motive principle and proximate aim of innovation is no doubt the higher efficiency of the improved and more elaborate products for personal comfort and well-being. But that does not remain the sole purpose of their consumption. The canon of reputability is at hand and seizes upon such innovations as are, according to its standard, fit to survive. Since the consumption of these more excellent goods is an evidence of wealth, it becomes honorific; and conversely, the failure to consume in due quantity and quality becomes a mark of inferiority and demerit.