Really, he's perhaps not as stupid as he looks.
4 seconds sound clip from the Mr. Topaze (1961) movie soundboard.
You can hear this line at 01:26:55 in the Blu-ray version of the movie.
Quote context
[...]
- And now, what would you say to a nice teaching post, huh?
- Oh. Do you perhaps want a small pension?
- No, I don't want a small pension.
- Really, he's perhaps not as stupid as he looks.
- Come on, tell us what you want.
- I should have thought you have already done that sufficiently.
[...]