Reinette in “The Girl in the Fireplace”

[voice-over, as the Doctor reads] My dear Doctor: the path has never seemed more slow, and yet I fear I am nearing its end. Reason tells me that you and I are unlikely to meet again, but I think I shall not listen to reason. I have seen the world inside your head and know that all things are possible. Hurry though, my love: my days grow shorter now, and I am so very weak. Godspeed, my lonely angel.