A Defense of Poetry argues that literature can be defined - pragmatist and historicist arguments notwithstanding - and that in its definition its unique value can be discovered.

In qualified opposition to the most sophisticated Formalist definitions involving redundancy or economy of expression, the author identifies literature ontologically as a sign of the preconceptual, as the "ostensive moment" that discloses neither the purpose nor the structure of existence but existence itself, revealed in its nonhuman register.