I led Isildur deep into the fires of Mount Doom, the one place ...
Elrond: I led Isildur deep into the fires of Mount Doom, the one place it could be destroyed... Isildur kept the Ring. It should have ended that day, but evil was allowed to endure. There's no strength left in the world of Men. They're scattered, divided, leaderless.
Gandalf: There is one who could unite them. One who could reclaim the throne of Gondor.
Elrond: He turned from that path a long time ago. He has chosen exile.