Why, he's simply brilliant.
3 seconds sound clip from the Beat the Devil (1953) movie soundboard.
You can hear this line at 00:22:40 in the Blu-ray version of the movie.
Quote context
[...]
- He was very pleased with that tip you gave him on the way home last night about the gold shares.
- I've forgotten what I told him. What was it?
- I don't remember either. I was listening to your voice. I wasn't listening to what you said.
- Well, has he any head for business?
- You don't suppose I'd marry a ninny, do you?
- If you imagine that Harry is simply going to Africa to plant coffee, you're very much mistaken.
- In point of fact, in point of fact, coffee is the least of Harry's interests.
[...]