If you make enemies on both sides of the border, you'll end up dead.

6 seconds sound clip from the Braveheart (1995) movie soundboard.

You can hear this line at 01:36:27 in the Blu-ray version of the movie.

Quote context

[...]

- Wait!

- I respect what you said, but remember that these men have lands and castles.

- It's much to risk.

- And the common man that bleeds on the battlefield, does he risk less?

- No. But from top to bottom, this country has got no sense of itself. Its nobles share allegiance with England. Its clans war with each other.

- Aye.

- Aye.

- If you make enemies on both sides of the border, you'll end up dead.

- We all end up dead. It's just a question of how and why.

- I'm not a coward. I want what you want, but we need the nobles.

- We need them? Nobles... Now, tell me, what does that mean, to be noble?

- Your title gives you claim to the throne of our country, but men don't follow titles. They follow courage.

[...]