How old are you?""About fifteen, I think. Though I still feel the same as I always did," Bod said, but Mother Slaughter interrupted, "And I still feels like I done when I was a tiny slip of a thing, making daisy chains in the old pasture. You're always you, and that don't change, and you're always changing, and there's nothing you can do about it.
Neil Gaiman, The Graveyard Book
age, change