DOCTOR: What do you want, Ferain? What do you want me to be? Shall I reveal my blazing power? Might that not fry you to a crisp? Shall I sweep away evil and chaos? Reorder the stars in their courses? Banish burnt toast forever? Well, I won't. I wouldn't if I could. Who do you think I am? I'm me. The Doctor. What I have been, someone might have imagined. What I will be, how can I tell? I'm not immortal.