She only knows one simple fact: that you're a him and she's a her.
5 seconds sound clip from the The Sword in the Stone (1963) movie soundboard.
You can hear this line at 00:43:10.738 in the Blu-ray version of the movie.
Quote context
[...]
- Look, I'm not a boy... I mean... I'm not a squirrel, I'm a boy. A human boy, not a real sq...
- Merlin, what will I do? She won't leave me al... Ow!
- Well, I'm afraid you're stuck, lad. When a girl squirrel chooses a mate, it's for life.
- But I won't be a squirrel tomorrow.
- She only knows one simple fact: that you're a him and she's a her.
- Now, leave me alone. I mean it!
- It's a rough game, anyone knows.
- Go away!
- There are no rules, anything goes.
[...]