In Hesiod's Pandora myth, the hope that remains after troubles escape is called Elpis. Elpis is the Greek personification or concept of hope, and she is the final occupant associated with Pandora's container in Works and Days.
Hesiod says that destructive forces fly out when Pandora opens the vessel, but Elpis remains inside. The wording has produced centuries of debate. Some readers interpret hope's remaining inside as a protection preserved for humanity; others argue that hope is withheld, or that the story is deliberately ambiguous.
The ancient Greek word elpis can mean expectation as well as hope, so translating it simply as “hope” does not settle every question about the passage. Hesiod does not provide a long allegorical explanation of why Elpis stays behind.
Elpis should not be confused with the Christian theological virtues or with a modern claim that hope was the last evil released. In the surviving ancient text, Elpis is the named final presence, and the narrative leaves its precise significance open to interpretation.