We are nice to the mice because it is intelligent to be so.
7 seconds sound clip from the An American Tail: Fievel Goes West movie soundboard.
You can hear this line at 00:23:12 in the Blu-ray version of the movie.
Quote context
[...]
- Why, you dirty, rotten, low-down, double dealing...
- I don't get it, boss. How come we're not munching those mice back there?
- Oui. This fraternity with mice does run counter to nature.
- Which would you rather have, the crouton or the entire Caesar salad?
- Of course, we will eat the mice, but only after we have exploited their labors.
- We are nice to the mice because it is intelligent to be so.
- So when do we take the big bite, boss?
- When do we get to eat them? When, when, when?
- When my empire at Green River is complete, and when we have a better mousetrap.
- Music... To aid the digestion. Help!
[...]