KALKIN: You're not old enough to have a granddaughter

DOCTOR: You're not old enough to be tired of life.

DOCTOR: I stopped running away from the bad things a long time ago, my life here meant everything to me.

LUCIE: You can't stay, you'll die if you stay!

DOCTOR: Everyone dies someday Lucie.

DOCTOR: Sometimes people don't want to be saved, sometimes, it's time to die, you should respect that.