The quote in question is not heard in a Charlie Chan movie, at least not from the series proper. It is possible it could have come from a film such as "The Return of Charlie Chan," an early '70s made-for-television movie which starred Ross Martin as Chan. However, I believe that I have read something at least close to what you quote in either a Taoist or Zen (Ch'an) context.
"Course food to eat, water to drink, and the bended arm for a pillow...that is an old definition of happiness in my country. What is ambition? A canker that eats at the heart of the white man, denying him the joys of contentment. Is it also attacking the heart of white woman? I hope not."
Behind That Curtain, 1928, Chapter 2 (Charlie says in response to Miss Morrow, Deputy District Attorney, regarding her asking him "surely your ambitious".)