- Colonel Watkins, police commissioner: Sir Stanley had so many friends, but few enemies.
- Charlie Chan: Only *one* enemy necessary to commit *murder*.
- James Andrews: [referring to the opium trade] The terrific toll of life taken yearly by this insidious traffic is beyond belief.
- Charlie Chan: Beauty of poppy contains sting of death.
- Colonel Watkins, police commissioner: The evidence is as clear as the nose on your face.
- Charlie Chan: Owner of nose cannot always see nose.
- Ship's officer: [seeing Charlie on the deck playing leap-frog with a bevy of little kids] They seem to have you down, Mr. Chan.
- Charlie Chan: Sixty summers young, sixty winters old.
- Sir Stanley Woodland: I made an important discovery this afternoon. That's what prevented me from meeting you. We can get together after this is over.
- Charlie Chan: [softly] Two ears for every tongue.
- Charlie Chan: Motive like end of string - tied to many knots. End may be in sight but hard to unravel.
- Lee Chan: Hi, Pop!
- Charlie Chan: [softly] Hi.
- [embracing Lee]
- Charlie Chan: Joy equals astonishment at seeing offspring in Shanghai.
- Charlie Chan: [looking at photo of his children] Distance no hindrance to fond thoughts.
- Lee Chan: [from other bedroom] Good night, Pop.
- Charlie Chan: Good night. Do not forget your prayers. May need 'em.
- Colonel Watkins, police commissioner: [to Andrews and Chan] Okay, gentlemen, it's your funeral.
- Charlie Chan: Hope not.
- Charlie Chan: [seeing that Lee has no money to pay the cab driver] Pocket book, of course, left in other suit?
- Lee Chan: Believe it or not!
- Charlie Chan: Eh! Old excuse like ancient billy goat - has whiskers.