The term "thoroughbred" has been employed in literature to signify both impeccable lineage and exceptional qualities, whether in animals or humans. In some texts, such as Bret Harte’s depiction of a stately animal [1] and Chekhov’s vivid portrayal of a bull-calf [2], the word underscores physical purity and admirable breeding. In other works, from Richard Henry Dana’s account of an exemplary English sailor [3] to W. E. B. Du Bois’s metaphor of unyielding endurance [4], it serves as a marker of superior character or performance. Emily Post extends this usage to the realm of social propriety, describing thoroughbred people as those who are inherently considerate and honorable [5], [6], [7], [8]. Even in ancient strategy literature, as seen in Sunzi’s metaphor of a tied thoroughbred [9], and in Aesop’s fable comparing a lion to a thoroughbred [10], the term conveys a sense of refined quality and exceptional capabilities.