The term "capable" weaves through literature with a versatile usage that ranges from highlighting latent potential to critiquing personal qualities. In some instances, it poses an open-ended question of possibility, as when London ponders, “What was it capable of?” [1], or when the term describes the functional capacity of objects, as seen in Jefferson’s delineation of musical instruments [2] and Ukers’ discussion of cell walls [3]. At other times, authors use it to comment on human attributes; Rousseau questions whether women are “capable of solid reason” [4] while Dostoyevsky notes the characters’ limits in moral rectitude or personal resolve [5], [6]. The word also stretches to embody philosophical and metaphorical depth, such as in Santayana’s reflection on ideas transformative enough “to convert the world” [7] and in Plato’s assertion that even abstract subdivisions are “capable” of mystifying wonder [8]. This broad application underscores how authors employ “capable” to interrogate potential, functionality, and character in a multifaceted literary discourse.