- Mailman: All those kids yours?
- Frank Gilbreth: Oh, these aren't so many. You ought to see the ones we left behind.
- Mailman: How you ever feed 'em?
- Frank Gilbreth: Oh, they come cheaper by the dozen.
- Man on street: Hey, Noah, what are you doing with that Ark?
- Frank Gilbreth: Collecting animals like the good Lord told me, Brother. All we need now is a jackass. Hop in!
- Repairman: All those kids yours, Mister, or is this a picnic?
- Frank Gilbreth: They're all mine and believe me, it's no picnic!
- Frank Gilbreth: [escorting Anne out of the house on her first date] I know it's not your fault, Lillie, but things would have been a whole lot easier if you'd taken my advice and had all boys.
- Mrs. Lillian Gilbreth: I'm sorry, dear. I'll try to be more careful with the next dozen.