El Inmortal by Jorge Luis Borges

In this enigmatic tale, a Roman soldier embarks on a quest for the elusive River of Immortality, driven by a desire to transcend the limitations of human existence. His journey leads him to a labyrinthine city inhabited by the Immortals, beings who have achieved eternal life but at the cost of losing their humanity and purpose. Through a series of philosophical reflections and encounters, the narrative explores the paradoxes of immortality, the nature of time, and the essence of human identity, ultimately questioning the true value of eternal life.