Yours is just the level head to do it.
4 seconds sound clip from the The Big Knife (1955) movie soundboard.
You can hear this line at 01:45:34 in the Blu-ray version of the movie.
Quote context
[...]
- It was a city bus that hit her.
- Changes everything, doesn't it?
- Does it?
- Not that Stanley's forgotten what happened here this afternoon.
- Some sort of an apology should be arranged, carefully, of course.
- Yours is just the level head to do it.
- Don't you have a memory from one hour to the next?
- Seven years is a long time. We've got a long row to hoe.
- How does someone like you live?
[...]