Yvaine: Are you tempted? Tristan: Tempted, by what? Yvaine: Immortality. Let's say it wasn't my heart. Not me. Just a star you didn't know. Tristan: You seriously think I could kill anybody. Even if I could, I mean, everlasting life? I imagine it would be kind of lonely. Well, maybe if you had someone to share it with. Someone you loved. Then it might be different.