You needn't worry, lad. To govern, you need to say only one of two things: 'That's a splendid idea. I'm glad I thought of it.' And, 'Guards, seize him!'
12 seconds sound clip from the Mickey Mouse - The Prince and the Pauper movie soundboard.
You can hear this line at 00:08:16 in the DVD version of the movie.
Quote context
[...]
- Yes! What a grand idea. Don't you see? It'll be perfect.
- I'll take your place with your friends in the streets of London.
- And you shall be the prince.
- The prince? I can't be the prince. Ha.
- Well, how do I act? What do I say?
- I'll be back in the wink of an eye.
- And if there's any trouble, all men know me by this.
- Wow. I'm not sure this is a good idea.
[...]