In its broad sense, civilization means not only comfort in daily necessities but also the refining of knowledge and the cultivation of virtue so as to elevate human life to a higher plane... It refers to the attainment of both material well-being and the elevation of the human spirit, [but] since what produces man's well-being and refinement is knowledge and virtue, civilization ultimately means the progress of man's knowledge and virtue.
Bunmeiron no Gairyaku [An Outline of a Theory of civilization] (1875).