First and last lines of the female companions. I know many don't agree with me, but Donna's goodbye line, having no idea who the Doctor is, is the most heartbreaking. As sad as roses was, donnas was the most tragic and sad
This is why I love Doctor Who. The moments when no matter who you are or what you think of yourself, the Doctor tells you that you're important.<<<I love how one of the main messages in this show is, everything is important, and that includes you.