It has already been remarked that the term "leisure", as here used, does not connote indolence or quiescence. What it connotes is non-productive consumption of time. Time is consumed non-productively (1) from a sense of the unworthiness of productive work, and (2) as an evidence of pecuniary ability to afford a life of idleness. But the whole of the life of the gentleman of leisure is not spent before the eyes of the spectators who are to be impressed with that spectacle of honorific leisure which in the ideal scheme makes up his life. For some part of the time his life is perforce withdrawn from the public eye, and of this portion which is spent in private the gentleman of leisure should, for the sake of his good name, be able to give a convincing account. He should find some means of putting in evidence the leisure that is not spent in the sight of the spectators. This can be done only indirectly, through the exhibition of some tangible, lasting results of the leisure so spent--in a manner analogous to the familiar exhibition of tangible, lasting products of the labour performed for the gentleman of leisure by handicraftsmen and servants in his employ. The lasting evidence of productive labour is its material product--commonly some article of consumption. In the case of exploit it is similarly possible and usual to procure some tangible result that may serve for exhibition in the way of trophy or booty. At a later phase of the development it is customary to assume some badge of insignia of honour that will serve as a conventionally accepted mark of exploit, and which at the same time indicates the quantity or degree of exploit of which it is the symbol. As the population increases in density, and as human relations grow more complex and numerous, all the details of life undergo a process of elaboration and selection; and in this process of elaboration the use of trophies develops into a system of rank, titles, degrees and insignia, typical examples of which are heraldic devices, medals, and honorary decorations.