The new hero-type favored by Aschenbach, and recurring in his books in a multiplicity of individual variants, had already been remarked upon at an early stage by a shrewd commentator, who had described his conception as that of an intellectual and boyish manly virtue, that of a youth who clenches his teeth in proud shame and stands calmly on as the swords and spears pass through his body … the figure of Saint Sebastian is the most perfect symbol if not of art in general, then certainly of the kind of art in question.

Ch. 2, as translated by David Luke - Death in Venice (1912)