Sullivan's Travels
written by Preston Sturges

The Butler (Robert Greig): If you'll permit me to say so sir: the subject is not an interesting one. The poor know all about poverty and only the morbid rich would find the topic glamorous.
Sullivan: (exasperated) But I'm doing it for the poor.
The Butler: I doubt that they would appreciate it, sir. They rather resent the invasion of their privacy. I believe quite properly, sir. You see, sir, rich people and theorists, who are usually rich people, think of poverty in the negative ... as the lack of riches ... as disease might be called the lack of health -- but it isn't, sir. Poverty is not the lack of anything, but a positive plague, virulent in itself, contagious as cholera, with filth, criminality, vice and despair as only a few of its symptoms. It is to be stayed away from, even for purposes of study ... It is to be shunned.
Sullivan: Well, you seem to have made quite a study of it.
The Butler: (dryly) Quite unwillingly, sir. Will that be all, sir?
(Sullivan watches him exit, then turns to the valet.)
Sullivan: He gets a little gruesome every once in a while.
The Valet (Eric Blore): Always reading books, sir.

Kudos and much thanks go to Jeff M., who found this monologue from the official Preston Sturges website. I have seen this (brilliant) movie but am not sure whether this scene appears exactly "as is" in the film (I like it very much regardless).