The Graveyard Book

by Neil Gaiman

Scarlett shrugged. “Well,” she said. “There’s atoms, which is things that is too small to see, that’s what we’re all made of. And there’s things that’s smaller than atoms, and that’s particle physics.” Bod nodded and decided that Scarlett’s father was probably interested in imaginary things.

Wherever you go, you take yourself with you.

You’re always you, and that don’t change, and you’re always changing, and there’s nothing you can do about it.